Digital PDFs

EK-ESE50-SG-B01

June 1993

140 pages

Original

2.1MB

Document:	ESE50 SDI Solid State Disk Service Guide
Order Number:	EK-ESE50-SG
Revision:	B01
Pages:	140
Original Filename:

OCR Text

ESE50 SDI Solid State Disk
Service Guide

Order Number: EK–ESE50–SG. B01

June 1993
The information in this document is subject to change without notice and should not be construed
as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no
responsibility for any errors that may appear in this document.
No responsibility is assumed for the use or reliability of software on equipment that is not supplied
by Digital Equipment Corporation or its affiliated companies.
© Digital Equipment Corporation 1992, 1993.
All Rights Reserved.
Printed in U.S.A.
The following are trademarks of Digital Equipment Corporation:
Alpha AXP, AXP, DEC, ESE20, ESE50, HSC, SDI, OpenVMS, VAX, VAX DOCUMENT, the AXP
logo, and the DIGITAL logo.
All other trademarks and registered trademarks are the property of their respective holders.

This document was prepared using VAX DOCUMENT, Version 2.1.

Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Product Description
1.1
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.1
Media Type, Model Byte, and Capacity . . . . . . . . . . . . . . . . . . . . . . . .
1.1.2
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.3
Error Correction and Checking (ECC) . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.4
Error Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.5
Data Retention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.5.1
Data Retention Data Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.5.2
Data Retention Battery Status . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.6
Powerup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.7
AC Power On and Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.8
Spin Up and Spin Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.9
Data Retention Error Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.10
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2
ESE50 System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.1
Operator Control Panel (OCP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2
Controller Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.3
Array Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.4
RZ35 or RZ27 Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.5
Power Monitor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.6
Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.7
AC Input Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.8
Battery Pack (1 or 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3
Powerup Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5
Control Panel Switches and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.1
READY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.2
RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.3
FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.4
WRITE PROTECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.5
Port A and B Switches and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.6
TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.7
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.8
Drive Actions on Switch Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–2
1–2
1–3
1–3
1–3
1–4
1–5
1–5
1–5
1–6
1–7
1–7
1–7
1–8
1–9
1–9
1–9
1–9
1–9
1–9
1–9
1–10
1–10
1–11
1–11
1–12
1–12
1–13
1–13
1–14
1–14
1–15

iii

2 Diagnostics
2.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2
Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3
System Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.1
OpenVMS Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.2
HSC Controller Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.2.1
ILDISK In-Line Disk Functional Test . . . . . . . . . . . . . . . . . . . . . .
2.3.2.2
ILEXER In-Line Multidrive Exerciser . . . . . . . . . . . . . . . . . . . . . .
2.3.2.3
DKUTIL Off-Line Disk Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1
2–1
2–2
2–2
2–3
2–3
2–3
2–3

3 Fault Isolation
3.1
Service Adapter Facility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1
Service Adapter Facility Description (SAF) . . . . . . . . . . . . . . . . . . . . .
3.1.2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2.1
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2.2
Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2.3
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3
Basic Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.1
Sanity Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2
Stack Memory Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2.1
Multifunction Peripheral Chip Test . . . . . . . . . . . . . . . . . . . . .
3.1.3.2.2
Local RAM Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2.3
Processor Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2.4
Firmware Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2.5
Load Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2.6
Display Configuration/Error Logs . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2.7
Display Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2.8
Continue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2.9
Local RAM Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4
Advanced Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.1
Advanced Monitor Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.2
Display Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.3
Correctable Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.4
Internal Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.5
Storage Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.5.1
Data Retention and Counts . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.6
IMB Memory Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.7
Configure System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.7.1
Display Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.7.2
Display Disk Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.8
Display Backup Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.8.1
Display/Set System Serial Number . . . . . . . . . . . . . . . . . . . . .
3.1.4.8.2
IMB Memory Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9
Offline Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9.1
System Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9.2
Controller Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9.3
Backup Disk Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9.4
Display Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9.5
IMB Memory Exerciser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9.6
Scan IMB Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9.7
TEST SGL BIT ERR LOGIC . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9.8
TEST DBL BIT ERR LOGIC . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.9.9
EDAC TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv

3–1
3–1
3–2
3–2
3–3
3–3
3–4
3–4
3–4
3–4
3–4
3–4
3–4
3–5
3–6
3–6
3–6
3–6
3–7
3–10
3–10
3–11
3–11
3–12
3–13
3–13
3–14
3–14
3–15
3–15
3–17
3–17
3–19
3–19
3–20
3–25
3–25
3–25
3–26
3–27
3–27
3–27

3.1.4.10
Patrol Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.11
Manual Save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.12
Manual Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.13
Enable SDI Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.13.1
Log - Display Logging Information . . . . . . . . . . . . . . . . . . . . . .
3.1.4.13.2
Short - Display Functions in Short Form . . . . . . . . . . . . . . . . .
3.1.4.13.3
Long - Display Functions in Long Form . . . . . . . . . . . . . . . . . .
3.1.4.13.4
Off - Turn Display Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.13.5
Clear - Clear Functions/Error Log . . . . . . . . . . . . . . . . . . . . . .
3.1.4.13.6
Status - Display System Status . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.13.7
Reset - Reset Controller (Power On) . . . . . . . . . . . . . . . . . . . .
3.1.4.13.8
DVAR - Display Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.13.9
MON - Return to Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.14
Power Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.5
Power Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.5.1
Power Monitor Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–27
3–27
3–28
3–28
3–28
3–29
3–29
3–29
3–29
3–29
3–29
3–29
3–29
3–30
3–30
3–30

4 Error Handling
4.1
4.2
4.3
4.4
4.5
4.6
4.7

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRUs and FRU Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Drive Faults (Error Type - DE) . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Transmission Error (Error Type - RE) . . . . . . . . . . . . . . . . . . . . . .
ESE50 Protocol Error (Error Type - PE) . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Initialization Faults (Error Type - DF) . . . . . . . . . . . . . . . . . . . . . .
ESE50 Write Protected (Error Type - WE) . . . . . . . . . . . . . . . . . . . . . . . . .

4–1
4–2
4–3
4–4
4–5
4–6
4–7

5 ESE50 Rev A and B — Removal and Replacement Procedures
5.1
5.2
5.3
5.4
5.4.1
5.4.2
5.4.3
5.5
5.5.1
5.5.2
5.6
5.7
5.8
5.9
5.10

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing the OCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the ESE50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shutting Down the ESE50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disconnecting the ESE50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gaining Access to the ESE50 Internal FRUs . . . . . . . . . . . . . . . . . . . .
Removing and Replacing ESE50 Modules . . . . . . . . . . . . . . . . . . . . . . . . .
Controller and Array Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Monitor and Power Supply Modules . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing the RZ35 Disk Drive . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing the Battery Backup Pack . . . . . . . . . . . . . . . . . .
Removing and Replacing the AC Input Box . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing the Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . .
Placing the ESE50 into External Enclosure . . . . . . . . . . . . . . . . . . . . . . . .

5–1
5–2
5–3
5–4
5–4
5–5
5–6
5–14
5–16
5–17
5–19
5–22
5–24
5–26
5–27

6 ESE50 Rev C — Removal and Replacement Procedures
6.1
6.2
6.2.1
6.2.2
6.3
6.3.1
6.4

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shutdown Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disconnecting the ESE50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator Control Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6–1
6–2
6–2
6–2
6–2
6–3
6–4

6.5
6.5.1
6.5.2
6.5.3
6.5.4
6.6
6.6.1
6.6.2
6.7
6.8
6.9
6.10
6.11

Accessing the Internal FRUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Chassis Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Top Shock Mount Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Modules Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controller and Array Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Monitor and Power Supply Modules . . . . . . . . . . . . . . . . . . . . .
RZ27 Disk Drive Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Backup Pack Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Input Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Assembly — Removable/Replacement . . . . . . . . . . . . . . . . . . . . . . . . .
The ESE50 External Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6–5
6–5
6–8
6–9
6–11
6–13
6–15
6–17
6–19
6–22
6–24
6–26
6–27

A ESE50 Error Codes
A.1
A.1.1
A.1.2
A.1.3
A.2
A.3
A.3.1
A.3.2

Generic Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Request Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Error Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extended Status Bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Error Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Detected Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reporting Mechanisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–1
A–1
A–2
A–2
A–2
A–6
A–6
A–6

B ESE50-CA Upgrade Procedure
Index
Examples
3–1
3–2
3–3
3–4
3–5
3–6
3–7
3–8
3–9
3–10
3–11
3–12
3–13
3–14
3–15
3–16
3–17
3–18
3–19

Basic Boot Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic Dialog Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display System Configuration/Error Log . . . . . . . . . . . . . . . . . . . . . . .
Display Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advanced Monitor Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advanced Monitor Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advanced Monitor Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advanced Monitor Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Error Log Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Log Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Status Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Counts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IMB Memory Dump Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hardware Configuration Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Default Geometry—Sample Display . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backup Display Sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3
3–4
3–5
3–6
3–6
3–10
3–10
3–11
3–11
3–12
3–12
3–13
3–13
3–13
3–14
3–14
3–15
3–15
3–16

3–20
3–21
3–22
3–23
3–24
3–25
3–26
3–27
3–28
3–29
3–30
3–31
3–32
3–33
3–34
3–35
3–36
A–1

System ID Sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IMB Memory Format Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Offline Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Verification Sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controller Test Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-On Samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local RAM Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual Port RAM Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDI Tests Sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backup Disk Test Sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LBN Tested Sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IMB Memory Exerciser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminal Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Patrol Diagnostic Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDI Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Logging Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Longword Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–17
3–18
3–19
3–20
3–20
3–20
3–21
3–21
3–22
3–25
3–25
3–26
3–27
3–27
3–28
3–29
3–30
A–4

ESE50 Solid State Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powerup Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power On/Off Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spin Up/Spin Down Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Simplified Block Diagram of ESE50 System . . . . . . . . . . . . . . . . . . . .
Operator Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAF Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the OCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear View of ESE50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the Front Panel Assembly . . . . . . . . . . . . . . . . . .
Removing/Replacing the Front Panel Assembly . . . . . . . . . . . . . . . . . .
Removing/Replacing the OCP Cable . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the ESE50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the RS-232 Cable . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Assembly, Top Captive Screws . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the Top Shock Mount Assembly . . . . . . . . . . . . . .
Removing/Replacing the Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the Controller Module . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the Power Supply Module . . . . . . . . . . . . . . . . . .
Removing/Replacing the Power Monitor Module . . . . . . . . . . . . . . . . .
Removing/Replacing the RZ35 with Module . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing RZ35 from Module . . . . . . . . . . . . . . . . . . . . . . . .

1–2
1–5
1–6
1–6
1–8
1–9
1–11
2–1
2–2
3–7
5–3
5–5
5–6
5–7
5–8
5–9
5–10
5–11
5–12
5–13
5–15
5–16
5–17
5–18
5–19
5–20

Figures
1–1
1–2
1–3
1–4
1–5
1–6
1–7
2–1
2–2
3–1
5–1
5–2
5–3
5–4
5–5
5–6
5–7
5–8
5–9
5–10
5–11
5–12
5–13
5–14
5–15
5–16

vii

5–17
5–18
5–19
5–20
5–21
5–22
6–1
6–2
6–3
6–4
6–5
6–6
6–7
6–8
6–9
6–10
6–11
6–12
6–13
6–14
6–15
6–16
6–17
6–18
6–19
6–20
6–21
B–1

RZ35 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Pack Cable (J90) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Input Box Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the AC Input Box . . . . . . . . . . . . . . . . . . . . . . . .
Removing/Replacing the Fan Cable . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 — Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OCP — Removable/Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Assembly — Removable . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Assembly — Removable/Replacement . . . . . . . . . . . . . . . .
OCP Cable Disconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The ESE50 — Removable/Replacement . . . . . . . . . . . . . . . . . . . . . . . .
Side Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The RS-232 Cable Disconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Top Shock Mount Assembly — Captive Screws . . . . . . . . . . . . . . . . . .
ESE50 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controller Module — Removable/Replacement . . . . . . . . . . . . . . . . . . .
Power Monitor Module — Removable/Replacement . . . . . . . . . . . . . . .
Power Supply Module — Removable/Replacement . . . . . . . . . . . . . . . .
Disk Drive with Slide Module — Removable/Replacement . . . . . . . . . .
Disk Drive — Removable/Replacement . . . . . . . . . . . . . . . . . . . . . . . .
Disk Drive — Jumper Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Pack — Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Pack — Removable/Replacement . . . . . . . . . . . . . . . . . . . . . . .
AC Input Box Mounting Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Input Box Mounting — Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
120 to 600 MB Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5–21
5–22
5–23
5–24
5–25
5–26
6–3
6–4
6–6
6–6
6–7
6–8
6–9
6–11
6–12
6–14
6–16
6–18
6–18
6–20
6–20
6–21
6–23
6–23
6–25
6–25
6–26
B–2

Summary of the ESE50 Media Type and Model Byte . . . . . . . . . . . . . .
Summary of Data Retention Times . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summary of Data Status Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powerup Sequence Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power On/Off Sequence Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spin Up/Spin Down Sequence Summary . . . . . . . . . . . . . . . . . . . . . . .
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESE50 Solid State Disk Product Specifications . . . . . . . . . . . . . . . . . .
Summary of the RUN Switch and Indicator . . . . . . . . . . . . . . . . . . . . .
Summary of Drive Actions on Switch Changes . . . . . . . . . . . . . . . . . .
FRUs and FRU Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protocol Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Initialization Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Write Protected Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2
1–4
1–4
1–5
1–6
1–6
1–7
1–10
1–12
1–15
4–2
4–3
4–4
4–5
4–6
4–7

Tables
1–1
1–2
1–3
1–4
1–5
1–6
1–7
1–8
1–9
1–10
4–1
4–2
4–3
4–4
4–5
4–6

viii

Preface
Audience
This guide is for Customer Services personnel, engineering, engineering
technicians, and repair center personnel. It is intended to aid Customer Services
personnel in servicing and maintaining the ESE50 electronic storage element.
Organization
This guide is divided into six chapters and two appendices.
Chapter 1, Product Description, is an introduction. It describes the device
configurations and gives a system overview that includes ECC, the storage array,
data retention system, and the standby power system.
Chapter 2, Diagnostics, describes the data retention system loading procedure,
device-resident diagnostics, diagnostic monitor tests and test sequences, and the
SDI loop test.
Chapter 3, Fault Isolation, describes troubleshooting tips, maintenance, and
system diagnostics.
Chapter 4, Error Handling, describes error handling procedures and lists the
errors with the FRUs suspected of causing the errors.
Chapter 5, Removal and Replacement Procedures, describes the removal and
replacement procedures for the various FRUs within a Rev. A or Rev. B ESE50
unit.
Chapter 6, Removal and Replacement Procedures, describes the removal and
replacement procedures for the various FRUs within a Rev. C ESE50 unit.
Appendix A, ESE50 Error Codes, lists the error codes and their definitions.
Appendix B, ESE50-CA Upgrade Procedure, describes the procedures for
upgrading the ESE50 unit from 120 MB to 600 MB data storage capacity.
Conventions
Notes, Cautions, and Warnings indicate different types of special information.

Note

Provides additional general information.

Caution

Provides essential information to prevent damage to equipment and
software.

Warning

Provides essential information to prevent personal injury.

1
Product Description
1.1 General Information
The ESE50 solid state disk (SSD) is a member of the Digital Storage
Architecture/Standard Disk Interconnect (DSA/SDI) family, and is plugcompatible with all DSA/SDI controllers.
The ESE50 solid state disk is a random access low latency mass storage device
that uses DRAM semiconductor technology for fast response time. The ESE50 is
Digital’s fastest disk drive and is used when I/O response time is a key metric.
The ESE50 is contained in a half rack (RA92 style) enclosure with its own power
and data retention capabilities. It connects and operates on the standard disk
interface (SDI) and may be used with controllers implementing this bus. The
operator control panel (OCP) from the RA9x disk drive is also used on the ESE50
SSD. The ESE50 can also be packaged in any SA3xx, SA6xx, SA8xx, or SA9xx
storage array cabinet.
The following controllers support the ESE50:
•

HSC (40/60/65/70/90/95)

•

KDM70

The ESE50 has been tested under OpenVMS Versions 5.4 and 5.5. Under these
versions, the ESE50 is identified as a DU device (rather than by the ESE50
name). Identification as a DU device does not impact any standard Digital disk
functionality. Shadowing, failover, dual porting, bound volumes, and so forth are
supported.
However, when running the ESE50 under OpenVMS Versions 5.4-n, 5.5, or 5.5-1,
keys things to be aware of are:
•

All shadow sets must be comprised of the same capacity ESE50 units.

•

Controller-based volume shadow sets require manual verification that all
members of the shadow set are on the same controller.

The ESE50 is fully supported under OpenVMS Version 5.5-2 and OpenVMS AXP
Version 1.5 (and all subsequent releases).
Figure 1–1 shows an ESE50 solid state disk.

Product Description 1–1

Product Description
1.1 General Information
Figure 1–1 ESE50 Solid State Disk

1.1.1 Media Type, Model Byte, and Capacity
The ESE50 has a unique media type and model byte depending on the capacity.
This is done for operating system compatibility. Table 1–1 describes the unique
media type and model byte for a specific ESE50 option.
Table 1–1 Summary of the ESE50 Media Type and Model Byte
Option

Media Type

Model Byte

Capacity (LBNs)

ESE50-AA,AB

ESE52

238080

ESE50-BA,BB

ESE56

1196544

ESE50-DA,DB

ESE58

1915392

1.1.2 Configurations
The seven ESE50 device configurations are as follows:
•

ESE50-AA — 120V 60 Hz (120 MB, with data retention)

•

ESE50-AB — 240V 50 Hz (120 MB, with data retention)

•

ESE50-BA — 120V 60 Hz (600 MB, with data retention)

1–2 Product Description

Product Description
1.1 General Information
•

ESE50-BB — 240V 50 Hz (600 MB, with data retention)

•

ESE50-DA — 120V 60 Hz (1.0 GB, with or without data retention)

•

ESE50-DB — 240V 50 Hz (1.0 GB, with or without data retention)

•

ESE50-CA — 120 to 600 MB upgrade

1.1.3 Error Correction and Checking (ECC)
For data reliability and integrity, Hamming code ECC and block ECC are used
during reading and writing of data.
Hamming code ECC is generated and stored with the data in the storage array.
It is checked and used to correct single-bit errors for the DRAM storage array.
Most uncorrectable errors detected by the Hamming code ECC are corrected by
the block ECC code. The error is reported to the host and logged.
The block ECC is supplied by the controller and stored with the data in the
storage array. On a read transfer, the block ECC is returned with the data to the
controller for checking. The block ECC code can correct up to eight symbol errors
in a block of data.

1.1.4 Error Logging
The ESE50 error log contains the error type, location, time, and other system
status information. The log is available through the SDI port or the Field Service
terminal port.
When an error occurs, the ESE50 informs the host using the Attention
mechanism. Then the controller can issue a GET STATUS command to ascertain
drive status. The ESE50 device also logs the error in an internal error silo. This
silo can be read by DKUTIL or by MDM diagnostics. This internal error silo
records the 32 most recent errors.

1.1.5 Data Retention
The ESE50 provides data nonvolatility through the use of an integrated data
retention system. This data retention system is comprised of a controller, a
SCSI magnetic Winchester disk drive, and batteries. Data retention is invoked
only when ac power is lost to the ESE50 unit during normal operation. In this
situation, the batteries will power the unit while all data in the memory arrays
is transferred to the Winchester disk drive. If ac power is restored at any time
during the transfer process, the ESE50 unit is instantly available.
On Rev. A and Rev. B ESE50 units, the ESE50-AA/AB (120 MB) and
ESE50-BA/BB (600 MB) options contain the complete data retention system.
On Rev. C ESE50 units, the ESE50-AA/AB (120 MB), ESE50-BA/BB (600 MB),
and ESE50-DA/DB (1 GB) options contain the complete data retention system.
Table 1–2 lists the data retention times.

Product Description 1–3

Product Description
1.1 General Information
Table 1–2 Summary of Data Retention Times

Backup
Time

Start Time

Maximum Number of
Complete Backups
(Within Two-Hour
Period)†

ESE50 Option

Revision

Data
Retention
Time

ESE50_AA/AB

A or B

120 MB

90 seconds

120 seconds

ESE50_BA/BB

A or B

600 MB

360 seconds

390 seconds

ESE50_AA/AB

120 MB

60 seconds

90 seconds

ESE50_BA/BB

600 MB

300 seconds

360 seconds

ESE50_DA/DB

1 GB

480 seconds

540 seconds

†A two-hour battery recharge period is required afterward. Power failure exceeding this duty cycle
may result in data loss.

Although the ESE50 provides nonvolatile features, it is the user’s responsibility
to protect data by using proper backup procedures similar to backup of magnetic
disks. The following backup methods are recommended for an ESE50:
•

File duplication
This method normally involves copying the data onto removable media, such
as magnetic tape.

•

Journaling
This method is recommended for files up to the last checkpoint or backup.
Caution
A data retention operation does not occur when the ESE50 main ac power
switch, located on the rear panel, is turned off. A data retention operation
is invoked automatically only when ac power is lost to the input power
cord. Refer to Section 6.2.2 for the orderly shutdown procedures.

1.1.5.1 Data Retention Data Status
The ESE50 maintains data status flags for the SCSI hard drive contents. These
flags are used to determine what data is restored to the RAM storage on a
powerup. Table 1–3 descibes these flags.
Table 1–3 Summary of Data Status Flags
Flag

Meaning

Set Conditions

Valid

The data retention system contains
a good copy of data from the RAM
storage to be restored.

Set when data is successfully moved from
the RAM storage to the SCSI hard drive. A
successful Save operation.

Invalid

The data retention system contains
a copy of data, but it does not
reflect the last data within the RAM
storage.

Set on a write to an LBN or by a successful
Online command if the data retention system
had a valid flag set.

No_Data

The data retention system contains
no data.

Set whenever a save is terminated before all
the data has been moved to the SCSI hard
drive.

1–4 Product Description

Product Description
1.1 General Information
1.1.5.2 Data Retention Battery Status
The ESE50 maintains a battery charge status for reporting to the host. The
state of the batteries is reported to the host on powerup or returning from a
power failure. If the batteries are not capable of performing a complete save, a
low battery error code (BF) is sent and the system is write protected. The write
protect is manually removed using the Write Protect switch on the OCP. The
write protect feature is a selectable option by a service port command. If write
protected, the write protect is removed as soon as the batteries are charged.

1.1.6 Powerup
The ESE50 system, upon powerup, performs a self test and then restores data
from the SCSI hard drive. If the data is not valid or nonexistent, the RAM
storage is written with all zeros data, good EDC indicating no forced error and
good ECC. The system reports an E1 error if the data in the SCSI hard drive is
invalid, and E0 error if there is no data.
Figure 1–2 and Table 1–4 describe the powerup sequence.
Figure 1–2 Powerup Sequence
POWER UP

SELF TEST
FAILED

PASS

REPORT ERROR
TO OCP

DATA RETENTION PRESENT
YES

NO
WRITE 0’S

DATA RETENTION VALID
YES
DONE

RESTORE DATA

WRITE 0’S

REPORT ERROR

DONE

Table 1–4 Powerup Sequence Summary
DR Status

Powerup Operation

No_Data

Write 0’s data without FE flags, report an E0 error

Valid

Restore data from SCSI hard drive

Invalid

Write 0’s without FE flag, report an E1 error

1.1.7 AC Power On and Off
The data retention system, depending on the state of the AC input, starts or stops
a save or restore operation. Figure 1–3 and Table 1–5 describe the AC power
on/off sequence.

Product Description 1–5

Product Description
1.1 General Information
Figure 1–3 Power On/Off Sequence
AC POWER CHANGE
AC POWER

ON −>OFF
STORAGE VALID
YES
DR VALID

STORAGE VALID
YES

NO
STOP RESTORE

SAVING

YES

OFF−>ON

YES

START SAVE

NO
START RESTORE

STOP SAVE
SET DR NO DATA

DONE

Table 1–5 Power On/Off Sequence Summary
DR Operation

AC Power On/Off

AC Power Off/On

Restoring

Stop restore

N/A

Saving

Continue

Stop save

Idle

Start save, independent
of battery state

Start restore, if the data is not restored in arrays

1.1.8 Spin Up and Spin Down
The data retention system on a spin down initiates a save if the storage is valid
and the DR is not valid. On a spin up, the save is stopped if running. Spin up
and spin down can only occur after the data has been fully restored to the RAM
storage.
Figure 1–4 and Table 1–6 describe the spin up and spin down sequence.
Figure 1–4 Spin Up/Spin Down Sequence

SPIN UP

SPIN DOWN

DR SAVING

DR VALID
YES

YES

STOP SAVE

START SAVE

SET DR NO DATA

DONE

Table 1–6 Spin Up/Spin Down Sequence Summary
DR Operation

Spin Up

Spin Down

Saving

Stop save, set
DR status = No_Data

Continue

Idle

N/A

Start save, DR status = Invalid or No_Data

1–6 Product Description

Product Description
1.1 General Information
1.1.9 Data Retention Error Handling
The system reports errors through the use of the SDI attention mechanism. If the
system fails during a test command or during an operation, the fault is reported
to the controller or host. The system is declared faulted. The fault is reported
to the controller/host three (3) times whenever the device is brought on-line or, if
already on-line, when it failed. The system remains faulted until the ESE50 is
successfully powered up again.
The ESE50 is used even though the data retention system has failed, but
the system is VOLATILE to power interruption not supported by the internal
batteries.

1.1.10 Related Documents
Table 1–7 Related Documentation
Title

Order Number

ESE50 User Guide

EK-ESE50-UG

SAxxx Storage Array Configuration Guide

EK-SAXXX-CG

1.2 ESE50 System Description
Figure 1–5 is a simplified block diagram of the ESE50 system. The ESE50
system contains the following devices:
•

Operator control panel

•

Controller module

•

Array modules (up to 16)

•

RZ35 or RZ27 disk drive

•

Power monitor module

•

Power supply module
120 MB version utilizes one
600 MB version utilizes two
1 GB version utilizes two

•

AC input box

•

Backup battery pack (Rev. C ESE50 units have two battery packs)

Product Description 1–7

Product Description
1.2 ESE50 System Description
Figure 1–5 Simplified Block Diagram of ESE50 System
SDI PORT A
SDI PORT B

Control Panel Bus
CONTROLLER
MODULE

RS−232

Internal
Memory
Bus
STORAGE
MODULE #1
64 MBYTE

CONTROL
PANEL

Service Adapter

Power Bus

POWER
MONITOR

STORAGE
MODULE #2
64 MBYTE

POWER
SUPPLY #1

STORAGE
MODULE #16
64 MBYTE

POWER
SUPPLY #2

BATTERY
PACK

SCSI
Bus
AC
INPUT

INTERNAL
SCSI DISK
Fits in 4 Storage
Module Slots or
Rev. A and B Units

AC Line
NUO_1335_04_RGS

1.2.1 Operator Control Panel (OCP)
The operator control panel provides an operator interface to the ESE50 system.
The panel consists of five switches and several indicators. A microprocessor and
support logic communicate to the ESE50 controller module.
Note
Although very similiar to the RA9X OCP, this OCP is not compatible with
RA9X units.

For a more detailed description of this panel, refer to the ESE50 Electronic
Storage Element User Guide (EK-ESE50-UG) and Section 1.5.

1–8 Product Description

Product Description
1.2 ESE50 System Description
Figure 1–6 Operator Controls and Indicators

Four−Character Alphanumeric Display

Unit Number

ESE50
READY

RUN

RUN
Switch
Status
LED
Indicator

FAULT

FAULT
Switch

WRITE
PROTECT

WRITE
PROTECT
Switch

PORT A
Switch

PORT B
Switch

TEST

TEST
Switch

ESE50_OCP

1.2.2 Controller Module
This module contains the SDI interface, microprocessor, SCSI interface, and
storage array interface. It performs all of the control functions internal to the
ESE50 system.

1.2.3 Array Module
This module (up to 16 in an ESE50 system) consists of 156 4 MB DRAMs, drivers,
and interface logic. It also contains an ID code to identify the module.

1.2.4 RZ35 or RZ27 Disk Drive
This disk drive resides in the ESE50 system and is used for data retention.

1.2.5 Power Monitor Module
This module consists of a microprocessor, D/A interface, A/D interface, and serial
line. It monitors the power supplies, temperature, and battery pack state.

1.2.6 Power Supply Module
This module consists of DC to DC converters for the +5, -5, and +12 volts current.
Up to two power supply modules (for redundancy) may be present in the ESE50
system.

1.2.7 AC Input Box
This box contains the line filter and input rectifiers.

1.2.8 Battery Pack (1 or 2)
The battery pack consists of 21 sub C cell nicad batteries and an in-line fuse. It
is used to power the data retention system in the ESE50. Note that this battery
pack should be replaced every three years.
One battery pack is utilized in Rev. A and Rev. B units, and two battery packs
are utilized in Rev. C units.

Product Description 1–9

Product Description
1.3 Powerup Diagnostic

1.3 Powerup Diagnostic
During powerup, the ESE50 device performs a powerup diagnostic self test (which
takes approximately 30 seconds to complete). This test includes the following
diagnostics:
•

Local RAM Test—tests the local RAM with exception of the vector and stack
spares.

•

Dual Port RAM Test—verifies the FIFO area of the dual port RAM.

•

MFP (multifunction peripheral) Chip Test—tests this chip and its read/write
register.

•

SCSI Chip Test—tests the SCSI interface chip and interrupts.

•

LCA Tests—tests the programmable gate arrays.

•

IMB Tests—tests the IMB bus for each array module installed.

During powerup, data is loaded from the data retention system back to the
memory arrays. The transfer time is approximately 120 seconds to 480 seconds,
depending on capacity.

1.4 Specifications
Table 1–8 lists the performance, nominal electrical, environmental, and physical
specifications of the ESE50 electronic storage element.
Table 1–8 ESE50 Solid State Disk Product Specifications
Performance
Data storage capacity

120 MB, 600 MB, or 980 MB

Transfer rate

20 Mbits/second

Bit width (cell period)

50 nanoseconds

Access Time

0.25 millisecond

Power Requirements
Standards

UL listed; CSA certified; FCC Class A verified

Voltage

120/208 Vac at 60 Hz; Single-phase WYE
220/240 Vac at 50 Hz

Operating Environment
Temperature

15 to 32°C (59 to 90°F)
Maximum allowable operating temperature is reduced by
a factor of 1.8°C/1000 m (1°F/1000 ft) for operation at high
altitude sites.

Relative humidity

20 to 80%

Maximum wet bulb

25°C (77°F)

Minimum dew point

2°C (36°F)

(continued on next page)

1–10 Product Description

Product Description
1.4 Specifications
Table 1–8 (Cont.) ESE50 Solid State Disk Product Specifications
Physical Dimensions
Height

10.42 inches

Width

8.74 inches

Length

18.50 inches

Shipping weight

63 pounds

Installed weight

55 pounds

Cabinet capacity

Varies

1.5 Control Panel Switches and Indicators
The OCP contains six switches, seven LEDs, and a four-character alphanumeric
display. All the panel positions contain lights that are turned on and off
independent of any switch’s position. The display shows the switch position, unit
number and error codes
Figure 1–7 shows the arrangement of these controls and LEDs on the OCP
located at the front of the cabinet. The sections that follow further describe the
switches and indicators.
Figure 1–7 Operator Controls and Indicators
Four−Character Alphanumeric Display

Unit Number

ESE50
READY

RUN

RUN
Switch
Status
LED
Indicator

FAULT

FAULT
Switch

WRITE
PROTECT

WRITE
PROTECT
Switch

PORT A
Switch

PORT B
Switch

TEST

TEST
Switch

ESE50_OCP

1.5.1 READY
The READY LED is used to indicate that the internal drive is ready for a read or
write operation. The LED can be illuminated only if the RUN/STOP switch is set
to RUN and the RUN/STOP LED is illuminated. The LED is on if the drive is in
the available state and spun up. The LED is also on if the drive is in the online
state, spun up and the READ/WRITE READY signal is asserted.

Product Description 1–11

Product Description
1.5 Control Panel Switches and Indicators
1.5.2 RUN
The RUN switch is set to the in position to spin up the drive. The RUN switch
is set to the out position to spin down the drive. The RUN LED always indicates
the physical state of the drive.
The RUN switch operates as described in Table 1–9, if the drive is on- or offline.
Table 1–9 Summary of the RUN Switch and Indicator
Drive Status

RUN Switch

RUN LED

Action

Offline 1

Out/In (DD status bit is not set)

Off/On

Spin up

Offline 2

In/Out

On/Off

Spin down

Online 3

In/Out

On/Off

Spin down

Online 4

Out/In

Off/On

Spin up

1 If drive cannot start for any reason, the LED remains off. If the DD status bit is set and off line, the

drive ignores the RUN switch.

2 Note that the LED turns off when the spin down is completed.
3 The drive utilizes the Attention Mechanism to notify the controller, but it is running and available

for processing additional commands. When the controller has completed all essential write operations
to the drive, it conducts a DISCONNECT with STOP modifier exchange, at which point the drive is
spun down and LED turns off.
4 The drive utilizes the Attention Mechanism to notify the controller, but remains spun down and
waits for additional commands. The controller conducts a RUN exchange when it is appropriate for
the drive to spin up. When the drive is spun up as a result of the RUN command, the LED is lit.

1.5.3 FAULT
The FAULT LED is used to indicate a read/write safety error and serious physical
error condition in the drive. If the FAULT LED is not lit and the PORT A and
PORT B LEDs are lit, changes in the FAULT switch are ignored. If the FAULT
LED is off and the PORT A and PORT B LEDs are also off, the FAULT switch
acts as a momentary contact. When pressed, a two-second long lamp test occurs,
which lights all the LEDs and the four-character alphnumeric display.
Regardless of its relative state to the controller, when the drive detects an error
that it classifies as a fault, it sets the DE bit in its generic status, lights the
FAULT LED, but remains in that current state. If and when the FAULT switch
is pressed, the drive immediately enters the offline state relative to all contollers,
stops all state clock transmissions on the real-time drive state line, and uses the
four-character alphanumeric display to show the two-digit error code indicating
the nature of the error. The drive remains offline and disconnected for the
duration of the time that the code is being displayed. The code is displayed until
the FAULT switch is again pressed, at which time the drive attempts to clear the
error condition as if a DRIVE CLEAR command for the DE bit had been received,
enters the drive available state, and returns the LEDs to normal service. If the
attempt to clear the error condition is unsuccessful, the DE bit remains set and
the FAULT LED remains lit. If the attempt is successful, the DE bit is cleared
and the FAULT LED turns off.
Note that whenever the DE bit is cleared (whether through DRIVE CLEAR,
reinitialization, or the FAULT switch), the FAULT LED is turned off.

1–12 Product Description

Product Description
1.5 Control Panel Switches and Indicators
In addition to drive faults reported by the DE bit, the fault mechanism is also
used to display a DD set fault code of 4A (hexadecimal) whenever the DD bit
is set. DD set faults are to be treated as an unclearable fault by the drive.
Except for the DD case, the error conditions under the FAULT LED are used and
interpretations of the fault codes themselves are drive-specific.

1.5.4 WRITE PROTECT
The WRITE PROT switch is set to the in position to request that the disk be
write protected. It is set to the out position to request that the disk be write
enabled. The WRITE PROTECT LED, when on, indicates a logically or physically
write protected disk. The WRITE PROTECT LED, when off, indicates a write
enabled disk.
If a drive is offline and the WRITE PROTECT switch is set in, the drive will turn
on the LED and internally write protect the drive. If the switch is set out, the
drive will turn off the LED and internally write enable the drive.
If a drive is online and the WRITE PROTECT switch is set in, the drive will
utilize the Attention Mechanism to report the change in the switch setting. The
drive will leave the LED off until the change is reported to the controller (using
the next GET STATUS response), at which point it will leave the drive internally
write enabled, but will turn the LED on to tell the operator that the controller
will refuse future write operations to the drive.
If a drive is online and the WRITE PROTECT switch is set out, the drive will
utilize the Attention Mechanism to report the change in the switch setting. The
drive will leave the LED on until the change is reported to the controller (using
the next GET STATUS response), at which point it will turn the LED off but
leave the drive internally write protected until the controller commands the drive
to internally write enable itself.

1.5.5 Port A and B Switches and LEDs
The port switches are set in to enable connection between the drive and the
controller to that port. It is set out to disconnect the drive from the controller
attached to that port. When a port is disconnected, the drive behaves as if
the cable to that port was physically removed and avoids any transmissions
(including clocks) down either SDB line. The LED (if on) indicates that the drive
is online to the controller connected to that port. If the LED is off, the drive is
offline to the controller connect to that port. Thus, when a drive is online to a
controller, only the port LED is lit. When the drive is offline or available to all
controllers, no port LEDs are lit.
If a drive is online and the corresponding port switch is set out, the drive cannot
physically deactivate the port until it has left the online state. If a drive is offline
to the port, the port immediately deactivates.
If a port switch is set in, a drive that is online immediately activates the port and
begins transmission of appropriate information down the appropriate SDB lines.
If the drive is online when a port switch is set in, it activates the port as soon as
possible, but no later than when it next leaves the online state.
If the drive is in the drive available state, it includes the newly activated port as
one of the ports to be listened to.
The drive does not light a port LED unless the drive is in the online state through
that port.

Product Description 1–13

Product Description
1.5 Control Panel Switches and Indicators
1.5.6 TEST
The TEST switch is set in to enable the Test Mode or display the unit number,
depending on the state of the other LEDs and switches.
The TEST switch acts like a momentary contact if the PORT A and PORT B
LEDs are on, or if the port switches are set in. This is the case if either controller
port is selected or a controller is accessing the drive. In this case, pressing the
TEST switch merely causes a temporary two-second display of the unit number.
If the above conditions are not true, the TEST switch acts as a two-position
switch; pushing it locks the TEST switch in and puts the OCP into the Test Mode
and turns on the TEST LED. When in Test Mode, the display shows the four-digit
unit number.
The unit number changes by the following actions:
•

Push the PORT A switch to select the 1’s digit to be changed. The 1’s digit
will start blinking to indicate that it is selected. Push the PORT A switch
again to select the next digit.

•

Push the PORT B switch to increment the blinking digit. Only that digit will
change. If the digit is at 9, pushing the PORT B switch will roll it over to 0.
Digit 3 rolls over from 4 to 0.

The unit number can range from 0000 to 4094. After setting the unit number, the
Test Mode is exited by pressing the TEST switch.
Pressing the WRITE PROTECT switch while in the Test Mode will display the
letter T in position 3 of the display, a blank in 2, and a two-digit test number
in position 1 and 0 of the display. The test number always equals 00 when first
displayed. The two-digit test number is incremented in the same fashion as the
unit number.
Pressing the WRITE PROTECT switch again, while in Test Mode, starts the
letter T blinking and starts the selected test running. While the letter T is
blinking, the PORT A switch will stop the blinking letter T and select the 1’s digit
to be incremented. Pressing the TEST switch will stop the blinking and exit the
Test Mode. Pressing the WRITE PROTECT switch will stop blinking letter T and
stop the test.

1.5.7 Display
The display is a four-position display for showing the switch state, unit number,
or an error code.
While the TEST LED is off, the display shows the state of the RUN, WRITE
PROTECT, PORT A and PORT B switches.
If the RUN switch is set in, position 3 will show the letter R. When the RUN
switch is set out, position 4 will be blank.
If the WRITE PROTECT switch is set in, position 2 will show the letter W. When
the WRITE PROTECT switch is set out, position 2 will be blank.
If the PORT A switch is set in, position 1 displays the letter A. When the PORT
A switch is set out, position 1 will be blank.
If the PORT B switch is set in, position 0 displays the letter A. When the PORT
B switch is set out, position 0 will be blank.
If none of the above switches are set in, then the unit number is displayed as
described previously in this section.
1–14 Product Description

Product Description
1.5 Control Panel Switches and Indicators
Pushing the TEST switch causes the display to show the unit number if a PORT
switch is set in and the PORT LED is lit.
If the FAULT LED is lit, pressing the FAULT switch in causes the display to
show the letter E in position 3, a blank in position 2, and a two-digit error code in
positions 1 and 0. Pushing the FAULT switch again returns the display to normal
mode.

1.5.8 Drive Actions on Switch Changes
The drive must turn the appropriate LEDs on and off as the conditions warrant.
That is, the drive alone manipulates the LEDs to reflect its current status as
described in the next table. There is no facility in the controller for altering the
OCP LEDs. Refer to Table 1–10.
Table 1–10 Summary of Drive Actions on Switch Changes
LED

Turned ON...

Turned OFF...

READY

when drive internally spun
up or available, or spun up,
online and read/write ready;
requires RUN LED on.

when drive not internally spun up or read/writer
ready when online.

RUN

when drive spun up.

when drive spun down.

FAULT

when DE = 1 and fault
condition detected.

when DE = 0.

WRITE
PROTECT

when drive is physically
write protected, or controller
should not accept hosts lines.

when drive is physically write enabled, or
controller should accept host writes.

PORT

when drive is online through
port.

when drive is offline through port.

TEST

when TEST switch is in,
PORT switches are out and
PORT LEDs off.

when TEST switch is out, a PORT switch is in
and PORT LEDs on.

Product Description 1–15

2
Diagnostics
2.1 Introduction
This chapter describes the diagnostics available for the ESE50.

2.2 Troubleshooting Tips
This section describes some useful tips:
•

Error code from the OpenVMS error log

•

OCP error codes

•

Use of the service adapter

•

DKUTIL

The power supply module contains three green LEDs, which indicate that the
three supply voltages are present. They are -5.2, +12, and +5 volts (refer to
Figure 2–1).
Figure 2–1 Power Supply Module LEDs

G
−5.2 volts
+12 volts
+5 volts
NUO_1335_01_RGS

The power monitor module contains three green and four yellow LEDs, which
indicate the status of the power system during the powerup cycle. Any error
detected causes the sequence to stop with the error code displayed. Refer to
Figure 2–2.

Diagnostics 2–1

Diagnostics
2.2 Troubleshooting Tips
Figure 2–2 Power Supply Module LEDs

*Status:
0 = Off
1 = On
B = Blink

1
1

1
0

= EPPROM Checksum Error
= RAM Error

B
B
B
B
B
B

1
1
0
0
0
0

0
0
1
1
0
0

1
0
1
0
1
0

= VREF 2.5V Error
= VREF 5.0V Error
= VBB Bus Error
= VCC Bus Error
= +12V Bus Error
= −5.2V Bus Error

1
1
1
1

B
B
B
B

1
1
0
0

1
0
1
0

= VFLT Bus Error
= VBB/VCC Adjust
= Dual Supply Check
= Power Fail 0

0
0
0

1
B
B

1
1
0

1
0
1

= Config Data
= TRMCAL Error
= Thermal Shutdown
Battery Ready
Battery Charger ON (Rev. C only)
Battery Charger ON
NUO_1335_02_RGS

2.3 System Diagnostics
2.3.1 OpenVMS Diagnostics
The OpenVMS diagnostics used in the ESE50 system are:
•

EVRAE

•

EVRCJ

These diagnostics run under VAX Diagnostic Supervisor (VDS) and are described
briefly in the following sections.

2–2 Diagnostics

Diagnostics
2.3 System Diagnostics
2.3.2 HSC Controller Diagnostics
The controller diagnostics used with the ESE50 system are:
•

ILDISK

•

ILEXER

•

DKUTIL

The controller diagnostics are described briefly in the following sections.
2.3.2.1 ILDISK In-Line Disk Functional Test
ILDISK isolates drive-related problems to one of the following FRUs:
•

Disk drive

•

SDI cable

•

Disk data channel module

The In-Line Disk Functional Test runs in parallel with disk I/O from a host CPU,
but the drive being diagnosed cannot be on-line to any host. This diagnostic is
initiated upon demand through the local terminal, or remotely by the psuedo
terminal, or may be initiated automatically upon disk drive failure by the HSC
control program.
2.3.2.2 ILEXER In-Line Multidrive Exerciser
This program exercises the various disk and tape drives attached to the HSC
subsystem. Drives to be tested are selected by the operator. The program issues
random READ, WRITE, and COMPARE commands to exercise the drives. The
results of the exerciser are displayed on the terminal from which it was initiated.
The reports given by the ILEXER do not provide any analysis of the errors
reported, nor do they explicitly call out a faulty FRU. ILEXER is strictly an
exerciser.
2.3.2.3 DKUTIL Off-Line Disk Utility
DKUTIL is a general utility that displays disk structures and disk data. Unlike
other utilities, DKUTIL is a command language interpreter. Initially, the user is
prompted for the unit number of a disk. The program then goes into a command
mode, prompting for a command, executing it, and then prompting for another
command. Execution is terminated by ^C, ^Y, ^Z, or the EXIT command. The
commands used are:
•

DEFAULT

•

DISPLAY

•

DUMP

•

EXIT

•

GET

•

POP

•

PUSH

•

SET

DKUTIL is useful for fetching the contents of the drive-resident error log in the
ESE50 device, as it does with other DSA disks.

Diagnostics 2–3

3
Fault Isolation
This chapter describes ESE50 fault isolation using the service adapter facility
(SAF).

3.1 Service Adapter Facility
The following provides information on the installation and use of the service
adapter facility (SAF) included with the ESE50 Solid State Storage System.
The section is arranged in the following manner.
•

INTRODUCTION—This section provides an overview of the SAF.

•

INSTALLATION—This section describes the requirements, installation, and
operation of the SAF.

•

BASIC MONITOR—This section describes the use of the ESE50 Basic
Monitor program and its capabilities.

•

ADVANCED MONITOR—This section describes the capabilities and
operation of the ESE50 Advanced Monitor program.

•

POWER MONITOR—This section describes the capabilities and operation of
the monitor functions of the power monitor assembly.

3.1.1 Service Adapter Facility Description (SAF)
The SAF allows the operator or maintenance personnel the capability of
loading new system firmware, performing system software configuration,
displaying/clearing error logs, and running diagnostics.
Caution
The SAF is a powerful tool that should only be accessed when absolutely
necessary. Virtually all fault isolation can be done from the OpenVMS
error log. It is possible to modify ESE50 parameters to the point of
nonfunctionality unless extreme care is excercised.

The SAF functionality is provided by the firmware on the controller module. The
only additional requirement is a simple RS-232 terminal. The terminal may be
permanently attached to the ESE50 and will provide real-time status messages
in addition to the monitor functions, or it may be connected only when needed to
perform one or more of the monitor functions.
The monitor functions are divided into three areas of the firmware.

Fault Isolation 3–1

Fault Isolation
3.1 Service Adapter Facility
The first function, termed the basic monitor, resides in the controller boot ROM.
The basic monitor provides the capability of displaying status messages during
the boot procedure and to display onboard error logs. Downloading of new system
firmware into the onboard Flash ROM is also performed through the basic
monitor function.
The advanced monitor program resides in the Flash ROM and contains the
capabilities to:
•

Display detailed logs

•

View and change system software configuration

•

Perform offline diagnostics

•

Enable/disable patrol diagnostics

•

Perform a manual save

•

Perform a manual restore

•

Display real time status

•

Switch to the power monitor function

The third area of the monitor function is resident in the power monitor assembly
firmware. It provides the capabilities of displaying the power system status,
margining voltages and performing diagnostics on the power system.

3.1.2 Installation
This section contains the information necessary to connect the user-supplied
RS-232 terminal to the ESE50 to utilize the SAF functions. Additionally, basic
operating information is provided.
3.1.2.1 Requirements
To use the SAF, a simple RS-232 terminal is connected to the ESE50. The only
exception to this requirement is when new firmware is to be loaded, which is
accomplished by replacing the controller module. This function requires that
the controller be connected to a serial port of a personal computer running DOS
version 3.1 or higher. Also, communication software such as PROCOMM, capable
of downloading the hexadecimal file, is required.
The interface is available at the industry standard DB25 connector located inside
the unit behind the front bezel. The interface specifications are as follows:
9600 baud
Eight data bits
Parity disabled
Full duplex mode
The protocol requires the active use of the RS-232 CTS and RTS signals. The
ESE50 is equivalent to an RS-232 DCE (modem) and drives the receive data and
CTS signals and receives the transmit data and RTS signals. These signals are
wired directly to a device equivalent to a terminal. The two data signals and two
control signals must be cross connected to the equivalent of another modem.

3–2 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
3.1.2.2 Connection
Connection is accomplished in three steps:
1. Verify that the terminal to be used is configured as previously defined.
2. Remove the front bezel from the ESE50 extrusion.
3. Connect the DB25 cable to the connector located on the top support bracket.
3.1.2.3 Basic Operation
The ESE50 basic boot operation is shown in Example 3–1.
Example 3–1 Basic Boot Operation
SANITY CHECK PASSED
HIT ESC KEY FOR BOOTUP MENU . . . . . Waiting for disk Testing disk \
VOL STATUS: VM
Restore in progress...
5.120 128 Kb blocks transfer (640 Mb) When the ESE50 is powered on, or reset, the microprocessor begins firmware
execution with the boot procedure located in the boot ROM. A set of sanity checks
are performed. When the checks are completed successfully, a status message
is displayed on the terminal. If any of the checks fail, the unit halts. Next, the
resident firmware in Flash ROM is checked. If the firmware installed is valid,
a status message is displayed on the terminal, and control is transferred to the
system firmware in Flash ROM. If the firmware is invalid or contains a checksum
error, an error message is displayed on the terminal and the basic monitor is
entered. If the operator types Esc at any time during the basic boot procedure,
the boot is halted and the basic monitor is entered.
Normal firmware execution begins with the power-on diagnostics. Any failure
during these tests displays the appropriate error message and the advanced
monitor is entered. When the power-on diagnostics have passed, a configuration
check is performed.
The configuration check begins by identifying the type and quantity of modules
installed. This data is used to establish the device type. Next, the backup disk is
checked. If it contains valid data and auto restore is enabled, the restore process
is started. If the backup disk data is In_Valid or No_Data, the memory is first
initialized followed by a format.
At the end of either of the cases described above, the unit is placed in operation
relative to the state at the last power down.

Fault Isolation 3–3

Fault Isolation
3.1 Service Adapter Facility
3.1.3 Basic Monitor
Example 3–2 shows the basic monitor menu. It allows the operator to select any
of the five options described below.
Example 3–2 Basic Dialog Display
SANITY CHECK PASSED
HIT literal>(ESC) KEY FOR BOOTUP MENU . . . . . ESE50-SCSI BASIC MONITOR VERSION 1.0
1 -- LOAD FIRMWARE
2 -- DISPLAY CONFIGURATION/ERROR LOG
3 -- DISPLAY INDENTIFICATION
4 -- CONTINUE
5 -- LOCAL RAM TEST
SELECT OPTION 1-5 :
3.1.3.1 Sanity Checks
On power-on, or reset, the boot ROM begins by performing a series of tests to
ensure the integrity of the system prior to passing control to the main operational
firmware in Flash ROM.
3.1.3.2 Stack Memory Test
The first test performed is a check of the processor’s stack area, which is part of
the 128K byte local RAM.
First, each longword in the stack area is written with its address. It is then read
back, and verified. Next, the memory is filled with 5Ah, read back and verified.
This bit pattern is inverted (A5h) and the test repeated. Finally, all ones (FFh)
and all zeroes are written to memory, read and verified.
If any memory location in this area fails, it will be impossible for the processor to
continue, and the boot procedure is halted.
3.1.3.2.1 Multifunction Peripheral Chip Test The second test of the boot ROM
checks the multifunction peripheral chip (68901) and is initialized. At this point
the stack memory passed message is displayed on the terminal.
3.1.3.2.2 Local RAM Test The remainder of the 128K byte local RAM (less the
stack area, which is now in use) is tested in the same manner described above.
Any failure will cause the address, expected value, and actual value to be
displayed, and the processor is then reset.
3.1.3.2.3 Processor Traps Processor traps are tested by attempting a divide
by zero operation and verifying that a processor exception did occur. If this test
passes, the sanity test passed message is displayed on the terminal.
3.1.3.2.4 Firmware Verification A checksum verification is performed on the
operational firmware in Flash ROM. If the checksum is good, control is passed to
the Flash ROM firmware. If the checksum does not verify, a message is displayed
on the terminal and the system enters the load firmware dialog.

3–4 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
3.1.3.2.5 Load Firmware
Note
Field service updates to the firmware are accomplished by controller
module FRU replacement.

The system firmware is loaded into the ESE50 controller through the SAF using
this option of the basic monitor. The load firmware dialog is displayed when the
routine is entered (see Example 3–3).
When the current loaded firmware is valid, the part number and revision number
are displayed. If the present firmware is invalid, the program goes directly to
the erase and load dialog. If the operator, when prompted (Y/N) to continue the
procedure answers no (N), then the display returns to the basic monitor menu. A
yes (Y) response will initiate the current firmware erase routine.
Enter the new firmware part number and revision number (for example, 5257-001
1.1 [the dash and period are required] at the prompt). At this point, the Flash
ROM erasure will begin. If the erasure is successful, the erase complete message
followed by the cycles required to erase will be displayed.
The begin firmware load prompt will be displayed. At this point, the operator
must use an appropriate communication package (such as PROCOMM) to transfer
the hexadecimal file to the controller.
When the firmware load begins, an ever increasing series of periods appears
as the load progresses. When the firmware load is completed successfully, the
firmware load complete message and the new firmware part number and revision
number will be displayed. Pressing any key will return you to the basic monitor
menu. If a failure occurs during the firmware load procedure, then the firmware
load failure message will appear.
Example 3–3 Load Firmware
FIRMWARE VERIFICATION
CURRENT FIRMWARE IS L 5275-001 REV 1.6 . CHECKSUM IS VALID
CONTINUE WILL ERASE CURRENT FIRMWARE. CONTINUE (Y/N) ?
ENTER NEW FIRMWARE P/N AND REV = 5275-001 REV 1.6
BEGIN FLASH ROM ERASE
ERASE COMPLETED 0068 ERASE CYCLES REQUIRED
BEGIN FIRMWARE LOAD ...........................................................
.........................
FIRMWARE LOAD COMPLETED
NEW FIRMWARE IS L 5275-001 REV 1.6
HIT ANY KEY TO CONTINUE......

Fault Isolation 3–5

Fault Isolation
3.1 Service Adapter Facility
3.1.3.2.6 Display Configuration/Error Logs Configuration and error
information are maintained in the EEPROM located on the controller module.
This option allows the operator the ability of displaying this information on the
terminal. Selection of this option causes a hexadecimal dump of the EEPROM
contents as shown in Example 3–4. It should be noted that once the advanced
monitor is entered, this information is available in formatted displays.
Example 3–4 Display System Configuration/Error Log
DISPLAY SYSTEM CONFIGURATION/ERROR LOG
(ESC) - RETURN TO MAIN
(CR) - NEXT

. - PREVIOUS

0010000 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
0010010 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
0010020 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
0010030 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
0010040 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
0010050 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
0010060 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
0010070 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
0010080 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
0010090 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
00100A0 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
00100B0 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF ................
00100C0 00000000 00000000 00000000 00000000 ................
00100D0 00000000 00000000 00000000 00000000 ................
00100E0 00000000 00000000 00000000 00000000 ................
00100F0 00000000 00000000 00000000 00000000 ................
>
3.1.3.2.7 Display Identification This selection causes the controller
identification information to be displayed as shown in Example 3–5. The
displayed information includes the controller part number, revision level, the
installed firmware part number, and the firmware revision level.
The user should ignore the SCSI ID and plug-and-play information displayed, as
they are not used by the ESE50.
Example 3–5 Display Identification
CONTROLLER MODULE A 5122-001 REV E
FIRMWARE L 5275-001 REV 1.6
SCSI ID = 7 . PLUG-AND-PLAY NOT INSTALLED
HIT ANY KEY TO CONTINUE
3.1.3.2.8 Continue Selection of option 4 causes the system to proceed to the
advanced monitor functions.
3.1.3.2.9 Local RAM Test This option causes the local RAM test described
previously to be performed. At the conclusion, if no errors are detected, the
system is reset.

3–6 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
3.1.4 Advanced Monitor
The advanced monitor provides all of the service adapter facility (SAF) functions
of the ESE50 system. The advanced monitor is entered automatically when the
unit completes the normal powerup sequence, or after the boot procedure has
completed and any of the following conditions occur:
•

Power-on diagnostic failure is detected

•

A configuration error is detected

•

Auto-restore is enabled and an error occurs

Refer to Figure 3–1 for a complete menu tree.
Figure 3–1 SAF Menu Tree

ESE50 SOLID−STATE DISK
ADVANCED MONITOR VERSION 2.3
1 −− DISPLAY MENU
DISPLAY MENU
1 −− CORRECTABLE ERROR LOG
1 − DISPLAY CORRECTABLE ERROR LOG
2 − CLEAR CORRECTABLE ERROR LOG
3 − RETURN TO DISPLAY MENU
2 −− INTERNAL ERROR LOG
1 − DISPLAY ERROR LOG
2 − CLEAR ERROR LOG
3 − CLEAR ERROR HEADER
4 − RETURN TO DISPLAY MENU
3 −− STORAGE STATUS
1 − DISPLAY STATUS
2 − CLEAR STATUS
3 − RETURN TO DISPLAY MENU
4 −− DIAGNOSTIC RESULTS
5 −− DATA RETENTION & COUNTS
Data retention status: Invalid data
Save count:
0
Restore count: 1
1 − Clear Save Count
2 − Clear Restore Count
3 − Return to Display Menu
6 −− IMB MEMORY DUMP
7 −− RETURN TO PREVIOUS MENU
2 −− CONFIGURE SYSTEM
SYSTEM CONFIGURATION
1 −− DISPLAY HARDWARE CONFIGURATION
2 −− DISPLAY DISK GEOMETRY
3 −− DISPLAY BACKUP CONFIGURATION
1 − Auto save:
ENABLED
2 − Auto: restore:
ENABLED
3 − Auto save delay:
5 seconds
4 − Drive SCSI ID:
1
5 − Verfiy backup
OFF
6 − Use linkled cmds:
OFF
7 − WP on low batt:
OFF
8 − Save/rest on spin down/up: ENABLED
9 − Returm config. menu
4 −− DISPLAY/SET SYSTEM S/N
5 −− IMB MEMORY FORMAT
6 −− RETURN TO MAIN MENU

(continued on next page)

Fault Isolation 3–7

Fault Isolation
3.1 Service Adapter Facility
Figure 3–1 (Cont.) SAF Menu Tree
3 −− OFF−LINE DIAGNOSTICS
1 − SYSTEM VERFICATION
2 − CONTROLLER TESTS
1 − POWER ON DIAGNOSTICS
2 − LOCAL RAM TEST
3 − DUAL PORT RAM TEST
4 − MFP CHIP TEST
5 − SCSI CHIP TEST
6 − LCA TESTS
7 − IMB TESTS
8 − SDI TESTS
1 − INTERNAL TESTS
2 − "A" CONTROL EXTERNAL LOOPBACK
3 − "A" DATA EXTERNAL LOOPBACK
4 − "B" CONTROL EXTERNAL LOOPBACK
5 − "B" DATA EXTERNAL LOOPBACK
6 − ALL EXTERNAL LOOPBACK
7 − INTERNAL TESTS AND ALL EXTERNAL LOOPBACKS
8 − RETURN TO CONTROLLER TESTS
9 − RETURN TO MAIN MENU
3 − BACKUP DISK TESTS
1 − SURFACE SCAN
2 − RANDOM READS
3 − RETURN TO PREVIOUS MENU
4 − STORAGE TESTS
ESE50 STORAGE TESTS
1 − QUICK IMB TEST
2 − SELECT TESTS
3 − SELECT BANKS
4 − SELECT ALL TESTS, ALL BANKS
5 − CLEAR ALL TESTS, ALL BANKS
6 − RUN TESTS
7 − RETURN TO OFF−LINE MENU
5 − DISPLAY ERROR LOG
DISPLAY MENU
NOTE: Refer to previous figure.
6 − IMB MEMORY EXERCISER
7 − SCAN IMB MEMORY
8 − TEST SGL BIT ERR LOGIC
9 − TEST DBL BIT ERR LOGIC
A − EDAC TEST
B − RETURN TO MAIN MENU

(continued on next page)

3–8 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
Figure 3–1 (Cont.) SAF Menu Tree
4 −− PATROL DIAGNOSTICS
5 −− MANUAL SAVE
6 −− MANUAL RESTORE
7 −− ENABLE SDI SPECIAL FINCTIONS
At main menu, enter SDI special function commands.
log
short
long
off
clear
status
reset
dvar
mon

−− Display Logging Information
−− Display Functions in Short Form
−− Display Functions in Long Form
−− Turn Display Off
−− Clear Function/Error Logs
−− Display System Status
−− Reset Controller (Power − On)
−− Display Variables
−− Return to Monitor

8 −− POWER MONITOR
POWER MONITOR STATUS

FIRMWARE − L5280−001 REV 1C

MARGIN PSM1 PSM2

TIME

DATE

TEMPERATURE

LOGIC − N/A
FLOAT − N/A

12:06

05/28/92

LOGIC − 25 C
POWER − 24C

BUS
VBB −−− 5.10
VCC −−− 4.96
+5V −−−
+12V −− 12.4
−5.2V − 5.16
FLOAT − 35.0

NORM
NORM

PSM1 PSM2
BATTERY
LOW
LOW
LOW
LOW

5.45
12.7
5.63
35.3

A. SET TIME OF DAY
B. START BATTERY TEST
C. SWITCH TO CONTROLLER
D. PSM1 LOGIC MARGIN HIGH
E. PSM1 LOGIC MARGIN LOW
F. PSM1 LOGIC NOMINAL
G. PSM1 FLOAT MARGIN LOW27
H. PSM1 FLOAT NOMINAL

STATUS −− READY
CHARGER − OFF
TEST −−−− OFF
VOLTAGE − 30.0
I. PSM2 LOGIC MARGIN HIGH
J. PSM2 LOGIC MARGIN LOW
K. PSM2 LOGIC NOMINAL
L. PSM2 FLOAT MARGIN LOW27
M. PSM2 FLOAT NOMINAL
N. MARGIN FLOAT LOW25
O. CANCEL FLOAT LOW25

Fault Isolation 3–9

Fault Isolation
3.1 Service Adapter Facility
3.1.4.1 Advanced Monitor Menu
Example 3–6 shows the advanced monitor main menu. It is from this menu that
all SAF functions are initiated. Capabilities are restricted by the ESE50 system
status at the time an action is requested. When the system is off-line, both port
switches out, the operator has full access to all the functions. When the system
is on-line, either Port A or Port B switch in, only functions which will not disturb
operation are available.
Example 3–6 Advanced Monitor Menu
ESE50 SOLID-STATE DISK
ADVANCED MONITOR VERSION 2.3
1 -- DISPLAY MENU
2 -- CONFIGURE SYSTEM
3 -- OFFLINE DIAGNOSTICS
4 -- PATROL DIAGNOSTICS
5 -- MANUAL SAVE
6 -- MANUAL RESTORE
7 -- ENABLE SDI SPECIAL FUNCTIONS
8 -- POWER MONITOR

SELECT OPTION 1-8 :
*** ESE50 is ALREADY FORMATTED ***
The menu lists the eight possible selections available; it is displayed until a
selection is made. If the selection chosen is unavailable due to system status,
then the operator is notified and the main menu is displayed. Some of the
selections cause immediate action to be performed, other cause submenus to be
displayed.
3.1.4.2 Display Menu
Selecting the display option from the main menu causes the display menu (see
Example 3–7) to be displayed. From this menu the operator may select one of six
items to be displayed. In addition, various logs may be cleared.
Example 3–7 Advanced Monitor Menu
DISPLAY MENU
1 -- CORRECTABLE ERROR LOG
2 -- INTERNAL ERROR LOG
3 -- STORAGE STATUS
4 -- DIAGNOSTIC RESULTS
5 -- DATA RETENTION & COUNTS
6 -- IMB MEMORY DUMP
7 -- RETURN TO PREVIOUS MENU

SELECT OPTION 1-7 :

3–10 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
3.1.4.3 Correctable Error Log
Selection of the correctable error log option on the display logs menu results
in the correctable error log submenu being displayed (see Example 3–8).
This submenu gives the operator the choice of displaying and/or clearing the
correctable error log.
Example 3–8 Advanced Monitor Menu
SELECT OPTION 1-7 :
CORRECTABLE ERROR LOG(S)
1 -- DISPLAY CORRECTABLE ERROR LOG
2 -- CLEAR CORRECTABLE ERROR LOG
3 -- RETURN TO DISPLAY MENU
SELECT OPTION 1-3 :
If a display selection is made, then the data is displayed on the screen (see
Example 3–9). If the amount of data causes a screen overflow, the display pauses
until the operator requests more data by pressing any key. This log displays
a compilation of single bit error occurrences by storage module identification,
the bank of memory affected, the BIT, the number of times the error occurred
(maximum of 16), and the identification of the DRAM associated with this
location. When the clear selection is made, the operator is asked for confirmation
before clearing the log. A positive reply (Y) causes the correctable error log to be
set to all zeros. A negative reply (N) will not clear the log, and the display log
menu will be redisplayed.
Example 3–9 Advanced Monitor Menu
CORRECTABLE ERROR LOG
MODULE
BANK
BIT

NUMBER

DRAM

DISPLAY COMPLETE - TYPE ANY KEY TO RETURN TO MAIN MENU
3.1.4.4 Internal Error Log
The ESE50 internal error log contains the last 32 errors detected by the unit.
The error reporting format consists of a 32-byte header and 32 error descriptors
of 32 bytes each.
This option gives the operator the ability of displaying any or all of the error
entries along with the header. In addition, all of the entries and/or the header
may be cleared.
Example 3–10 shows the internal error log submenu. If the operator selects
the display option, a prompt requests the descriptor to be displayed (1 to 32),
or "X" for all. The requested descriptor is displayed along with the header
(see Example 3–11). If all was selected, then descriptor number 1 is displayed;
pressing any key causes number 2 to be displayed until number 32 has been
displayed or the operator presses an Esc key. At the end of the display operation,
the display returns to the internal error log submenu.

Fault Isolation 3–11

Fault Isolation
3.1 Service Adapter Facility
Option 2 causes all of the error descriptor entries to be cleared. Option 3 clears
the internal error log header.
Example 3–10 Internal Error Log
1 -- DISPLAY ERROR LOG
2 -- CLEAR ERROR LOG
3 -- CLEAR ERROR HEADER
4 -- RETURN TO DISPLAY MENU
SELECT OPTION 1-4 :

Example 3–11 Error Log Header
ERROR LOG HEADER
Seeks since power up:
Cumulative seeks:
Elapsed time:
Cumulative errors:

0
0
0
0

ERROR LOG ENTRY NUMBER 2
Error type:
NONE
Error code:
00
FRU number:
00
Number of seeks:
0
Entry number:
1
Minutes:
0
Status byte:
00
DR status:
FB
Cylinder:
0000
Array and bank:
00
Storage status:
00
HIT ANY KEY TO CONTINUE .......
3.1.4.5 Storage Status
The storage status consists of 16 bytes of status for each of the 16 possible storage
module locations. This option provides for the display and/or clearing of each of
the 16 entries.
Selection of storage status from the display log menu will display the storage
status submenu shown in Example 3–12. The display option prompts the operator
for the module to be displayed by physical slot number. The operator selects from
2 through 16 or "X" for all. If "X" is typed, the storage status for the first slot is
displayed; pressing any key displays the next slot’s status in sequence.
By selecting the clear option, the operator may clear any of the storage status
entries individually, or all 16 by selecting the entry number or "X" at the prompt.

3–12 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
Example 3–12 Display Log Menu
1 -- DISPLAY STATUS
2 -- CLEAR STATUS
4 -- RETURN TO DISPLAY MENU
SELECT OPTION 1-3 :

Example 3–13 Storage Status Display
1 -- DISPLAY STATUS
2 -- CLEAR STATUS
4 -- RETURN TO DISPLAY MENU
SELECT OPTION 1-3 :
Enter module number (2 - 16 or x for all):
SLOT 2 STORAGE MODULE A4942-004 REV B 64 MegaBytes
GD = 1 MO = 0 RO = 0 CO = 0 FO = 0 F1 = 0 FR = 1
BANK
0
1
2
3

LA
00
01
02
03

GD
1
1
1
1

MRDS
00
00
00
00

RDS
00
00
00
00

CRD
00
00
00
00

MORE - TYPE ANY KEY TO DISPLAY MORE: ESC TO RETURN TO MAIN MENU
3.1.4.5.1 Data Retention and Counts Selection of this option causes a display
of the current status of the data retention system. The status is Valid Data,
In_Valid Data, or No_Data. In addition, the save and restore counts are
displayed. Example 3–14 is an example of the display.
The operator has the option of clearing either the save count, the restore count,
or both, by selecting option 1 or 2.
Example 3–14 Display Counts
Data retention status:
Save count:
0
Restore Count: 1

Invalid data

1 -- Clear Save Count
2 -- Clear Restore Count
3 -- Return to Display Log Menu
SELECT OPTION 1-3 :
3.1.4.6 IMB Memory Dump
This feature is used to display the contents of IMB memory on the terminal.
When selected, the user is prompted for the start address. This address is on
eight longword (32 bytes) boundaries. The default value is "0" for the first access;
afterwards it is end address from the last display. After the start address is
entered, the operator is prompted for the end address. The default is Start + 11,
or one full screen.

Fault Isolation 3–13

Fault Isolation
3.1 Service Adapter Facility
Once the end address is entered, the memory contents are displayed and the
operator is prompted for the next start address.
Example 3–15 shows a typical IMB memory dump display. Pressing the Esc key
causes the IMB memory dump program to exit and control to be returned to the
main menu.
Example 3–15 IMB Memory Dump Display
Start
[
0] :
End
[
11] :
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000002 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000003 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000004 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000005 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000006 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000007 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000008 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000009 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0000000A 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0000000B 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0000000C 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0000000D 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0000000E 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0000000F 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000010 00000000 00000000 00000000 00000000 37000045 40B223BB 78BEA6D0 119A6A36
00000011 16DE0468 D3654D7D 00000002 00000000 00000001 00000001 00000001 00000001
Start

[

11] :

3.1.4.7 Configure System
The configure system selection on the advanced monitor menu initiates the
system configuration submenu display (see Example 3–16). Selections from
this submenu allow the operator to display system hardware and software
configurations and enter new configurations.
Example 3–16 System Configuration
SYSTEM CONFIGURATION
1 -- DISPLAY HARDWARE CONFIGURATION
2 -- DISPLAY DISK GEOMETRY
3 -- DISPLAY BACKUP CONFIGURATION
4 -- DISPLAY/SET SYSTEM S/N
5 -- IMB MEMORY FORMAT
6 -- RETURN TO MAIN MENU
SELECT OPTION 1-6 :
3.1.4.7.1 Display Hardware Configuration The hardware configuration display
(see Example 3–17) shows the total storage capacity of the ESE50 and the
type and quantity of modules installed. The controller module identification
information contains part number and revision letter, and the firmware part
number and revision number. Each storage module is identified by part number,
revision letter, and the storage capacity of the module.

3–14 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
Example 3–17 Hardware Configuration Display
ESE50 SYSTEM HARDWARE CONFIGURATION
TOTAL STORAGE CAPACITY = 640 MEGABYTES
SLOT

SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT
SLOT

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

CONTROLLER MODULE A 5122-001 REV E
FIRMWARE L 5275-001 REV 1.6
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
EMPTY
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
STORAGE MODULE A4942-004 REV B 64 MEAGBYTES
DISK
DISK
DISK
DISK

HIT ANY KEY TO CONTINUE .......
3.1.4.7.2 Display Disk Geometry The ESE50 is formatted automatically on
power-on when either the auto restore feature is disabled or the saved volume
is In_Valid or No_Data. The default geometry is shown in Example 3–18 for an
ESE56 configuration (600 MB). The disk geometry may be changed using the IMB
memory format option in the configure submenu. This change is not saved and is
lost on a power down.
The display disk geometry selection displays the current formatted geometry.
Pressing the Ctrl C key returns the advanced monitor to the main menu.
Example 3–18 Default Geometry—Sample Display
ESE50 DISK GEOMETRY
ESE50 Memory Size = 640 MegaBytes
128 Tracks/Cylinders 4 Sectors/Track + 0 Replacement Sectors/Tracks
2340 Total Cylinders
299593 Total Tracks
1198372 Total Sectors
2337 LBN Cylinders
299136 LBN Tracks
1196544 LBN Sectors
4 RCT Copy Size
4 RCT Tracks
4 RCT Sectors
258 FCT Copy Size
65 FCT Tracks
258 FCT Sectors
1 XBN Cylinders
128 XBN Tracks
512 XBN Sectors
2 DBN Cylinders
256 DBN Tracks
1024 DBN Sectors
Gap0 = 17

Gap1 = 17

Gap2 = 32

HOST LBNs = 1196540 = 584 MEGABYTES

HIT ANY KEY TO CONTINUE .......
3.1.4.8 Display Backup Configuration
The disk backup (data retention) feature of the ESE50 system contains several
configurable options. This selection of the configuration menu is used to display
the current backup configuration and allows the operator the ability of modifying
these parameters.

Fault Isolation 3–15

Fault Isolation
3.1 Service Adapter Facility
Example 3–19 shows a sample display. The operator enters the option number of
the configuration parameter to change. Options having only two values (that is,
auto save: enable/disable) toggle the selection when the option number is entered.
Options requiring a parameter (that is, auto save delay) will prompt for the value
to be used.
Example 3–19 Backup Display Sample
1 -- Auto Save:
ENABLED
2 -- Auto restore:
ENABLED
3 -- Auto save delay: 5 seconds
4 -- Drive SCSI ID: 1
5 -- Verify backup: OFF
6 -- Use linked cmds: OFF
7 -- WP on low patt: OFF
8 -- Save/rest on spin down/up: ENABLED
9 -- Return to config menu

SELECT OPTION 1-8 :
The following describes the options.
•

AUTO SAVE: (ENABLE/DISABLE)—Turns on/off the auto save function.
When enabled, an auto save will be performed whenever an AC power failure
is detected and the battery is ready. If disabled, an auto save will not be
performed and the system will shut down.

•

AUTO RESTORE: (ENABLE/DISABLE)—Turns on/off the auto restore
function. When enabled, an auto restore will be performed each time power
is applied to the unit and the saved volume is valid. When disabled, the
auto restore will not be performed. The memory is first initialized and then
formatted.

•

AUTO SAVE DELAY: —Sets the delay between the time a power failure is
detected and the beginning of an auto save operation if enabled. The operator
may select any value in seconds from 1 to 255.

•

DRIVE SCSI ID:—Allows the operator to select the SCSI ID of the backup
disk. The default is 1 and should only be changed if the backup disk is also
changed.

•

VERIFY BACKUP: —The default setting is OFF, and causes the system to
shut down following an auto or manual save operation. If set to ON, the data
saved will be verified prior to completion of the save operation. It should be
noted that the verify operation requires additional time to perform and drains
the battery further during an auto save operation.

•

USE LINKED CMDS:—Allows the system to use linked commands during
a save or restore operation. The default is OFF and cannot be used if the
backup disk is an RZ35 or RZ27.

•

WP ON LOW BATT:—When set to ON, the system will write protect the
memory following a powerup sequence until the battery contains sufficient
charge to support an auto save operation. If set to OFF, the unit will not be
write protected. It should be noted that writes will be allowed and the backup
volume will be marked In_Valid. Should a power failure occur before the
battery becomes ready, all data will be lost.

3–16 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
•

SAVE/REST ON SPIN DOWN/UP:—Turns on/off the SAVE on spin down.
When enabled, a SAVE will be initiated on a spin down. If disabled, a SAVE
will not be performed on a spin down.

3.1.4.8.1 Display/Set System Serial Number Each ESE50 system contains a
unique system serial number, which is reported as the drive ID in the common
characteristics. This number is the four-digit system serial number and is saved
in the EEPROM located on the controller module.
Whenever the controller module is replaced or moved to a new system, this
number must be changed in the controller EEPROM. This selection from the
configuration menu (see Example 3–20) is used to facilitate this. When selected,
the current serial number is displayed and the operator is prompted for a new
number. If no entry is made, the number is unchanged. The new number must
consist of four digits.
Example 3–20 System ID Sample
1 -- DISPLAY HARDWARE CONFIGURATION
2 -- DISPLAY DISK GEOMETRY
3 -- DISPLAY BACKUP CONFIGURATION
4 -- DISPLAY/SET SYSTEM S/N
5 -- IMB MEMORY FORMAT
6 -- RETURN TO MAIN MENU

SELECT OPTION 1-6 :
Current system serial number: 0013
Enter new system serial number (0 - 9999)
3.1.4.8.2 IMB Memory Format During normal operation, the SDI format is
installed in the IMB memory from the restore operation if a valid volume was
saved or written automatically if the backup disk volume is either In_Valid or
No_Data during a power on or reset sequence.
This option of the SAF allows the operator to reformat the IMB memory if it was
changed during diagnostics, or if a different disk geometry is desired.
Example 3–21 shows the dialog for the IMB memory format operation. After the
sign on message, the operator is warned that continuing with the operation will
overwrite all memory.

Fault Isolation 3–17

Fault Isolation
3.1 Service Adapter Facility
Example 3–21 IMB Memory Format Display
* * * * E S E 5 0

I N T E R F A C E

* * * * *

*** ESE50 Will Be Formatted ***
WARNING ---- You are about to write to all of memory.
Input ^Z to skip question. ^C to abort.
Gap0
[ 17]:
Gap1
[ 17]:
Gap2
[ 32]:
RBN/Track
[ 0]:
Sector/Track
[ 4]:
Track/Cylinder
[ 128]:
FCT RCT Copies
[ 1]:
Data Preamble
[ 15]:
Headr Preamble
[ 12]:
This is followed by a series of nine parameters to be used by the format. The
operator may use all of the defaults by typing Ctrl Z. At this point, the format
operation begins; once completed the terminal displays the disk geometry. The
operator may return to the main menu by typing Ctrl C.
If the default values are to be changed, each parameter is displayed in order and
the new values entered. Typing Ctrl C at any time will abort the format operation
and return the SAF to the main menu.
The following defines the parameters and their default values:
•

GAP0—Defines the duration in word clocks (16 SDI bit times each) from the
end of sector/index to the sync at the start of the header field. The default
value is 17.

•

GAP1—Defines the duration in word clocks (16 SDI bit times each) from the
end of the header field to the sync at the start of the data field. The default
value is 17.

•

GAP2—Defines the duration in word clocks (16 SDI bit times each) from the
end of the data field to the start of the next sector/index (reinstruction period).
The default value is 32.

•

RBN/TRACK—Defines the number of replacement blocks allocated to each
track. The default value is 0.

•

SECTOR/TRACK—Defines the number of sectors per track. The default is 4.

•

TRACKS/CYLINDER—Defines the number of tracks per cylinder. The default
is 128.

•

FCT RCT COPIES—Defines the number of FCT and RCT copies formatted.
The default is 1.

•

DATA PREAMBLE—Defines a value reported during a Get Subunit
Characteristics command. The SDI controller uses this value during Format
and Write commands. The default value is 15.

•

HEADER PREAMBLE—Defines a value reported during a Get Subunit
Characteristics command. The SDI controller uses this value during Format
commands. The default value is 12.

3–18 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
3.1.4.9 Offline Diagnostics
When the offline diagnostics are selected from the advanced monitor menu, the
offline diagnostics submenu is displayed (see Example 3–22). However, if the
system is online, the operator is notified and the advanced monitor menu is
redisplayed. The offline diagnostics menu gives the operator nine types of tests
to run. These tests allow complete testing of the ESE50 system for both system
verification and fault isolation. During testing, all errors are either displayed on
the terminal screen or saved in controller RAM. The EEPROM error logs are not
written to. The offline diagnostics are initiated and controlled from menus and
dialog displayed on the terminal attached to the SAF.
Example 3–22 Offline Diagnostics
1 -- SYSTEM VERIFICATION
2 -- CONTROLLER TEST
3 -- BACKUP DISK TESTS
4 -- STORAGE TESTS
5 -- DISPLAY ERROR LOG
6 -- IMB MEMORY EXERCISER
7 -- SCAN IMB MEMORY
8 -- TEST SGL BIT ERR LOGIC
9 -- TEST DBL BIT ERR LOGIC
A -- EDAC TEST
B -- RETURN TO MAIN MENU
SELECT OPTION 1-B :
3.1.4.9.1 System Verification The system verification option allows the operator
to select one mode that will run all the controller tests and a storage test on all
installed memory. Example 3–23 shows the dialog on the terminal when the
system verification option is selected. The operator enters the number of passes
of the verification test to run.
Any number between one pass and 256 passes can be selected. A decision to halt
the tests on any error encountered is required at the prompt HALT ON ERROR[Y
/N]. A positive response (Y) will cause the testing to halt and display the error
message when an error is detected. A negative response (N) allows the system to
log any detected error and continue the testing.
Before the verification tests are started, the operator is given an opportunity
to cancel the operation by a negative response N to prompts ANY DATA WILL
BE DESTROYED, CONTINUE [Y/N]. A positive response Y allows the testing
to start. As the tests run, the number of passes will increment as each pass is
completed. Any errors encountered during testing will be accumulated in the
error column.

Fault Isolation 3–19

Fault Isolation
3.1 Service Adapter Facility
Example 3–23 System Verification Sample
SYSTEM VERIFICATION TESTING
SELECT NUMBER OF PASSES [ 1 - 256 ] = 3
HALT ON ERROR [Y/N] = Y
ANY DATA WILL BE DESTROYED. CONTINUE [Y/N] = Y
PASS 3
ERROR 0
HIT ANY KEY TO CONTINUE ......
3.1.4.9.2 Controller Tests Selection of controller tests causes the display of the
controller tests submenu (see Example 3–24). This submenu allows the operator
to select the tests to be performed. Selections 1 through 7 cause individual tests
to be performed; selection 8 causes the SDI test submenu to be displayed.
Example 3–24 Controller Test Submenu
1 -- POWER ON DIAGNOSTIC
2 -- LOCAL RAM TEST
3 -- DUAL PORT RAM TEST
4 -- MFP CHIP TEST
5 -- SCSI SHIP TEST
6 -- LCA TEST
7 -- IMB TEST
8 -- SDI TEST
9 -- RETURN TO MAIN MENU
SELECT OPTION 1-9 :
POWER ON DIAGNOSTIC
This selection allows the user to run all of the controller power-on diagnostics.
The tests consists of:
LOCAL RAM TEST
DUAL PORT RAM TEST
MFP CHIP TEST
SCSI CHIP TEST
LCA TESTS
IMB TESTS
Each of these tests may be run individually from other selections in this menu
and are described in the following paragraphs. As the tests are completed, a
message is displayed on the terminal (see Example 3–25).
Example 3–25 Power-On Samples
MFP CHIP TEST ----- TEST COMPLETED
LOCAL RAM TEST ----- TEST COMPLETED
DUAL PORT RAM TEST ----- TEST COMPLETED
SCSI CHIP TEST ----- TEST COMPLETED
LCA1 - LCA4 TEST ----- TEST COMPLETED
INTERNAL MEMORY BUS TEST ----- PASSED
HIT ANY KEY TO CONTINUE ......

3–20 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
LOCAL RAM TEST
This selection tests all of local RAM with the exception of vector and stack space.
First, a single 1 bit is shifted through each byte, pattern 01h through FFh. The
data pattern is first written, then read and verified. This is followed by a floating
0’s pattern, FEh through 00h. Again the pattern is first written, then read and
verified. Progress messages are displayed on the terminal as the test proceeds
(see Example 3–26). If an error occurs, its address, expected data and actual data
are displayed.
Example 3–26 Local RAM Test
LOCAL RAM TEST . STARTING ADDRESS ---- 00300800
00002000 BYTES MEMORY TESTED
00004000 BYTES MEMORY TESTED
00006000 BYTES MEMORY TESTED
00008000 BYTES MEMORY TESTED
0000A000 BYTES MEMORY TESTED
0000C000 BYTES MEMORY TESTED
0000E000 BYTES MEMORY TESTED
00010000 BYTES MEMORY TESTED
00012000 BYTES MEMORY TESTED
00014000 BYTES MEMORY TESTED
00016000 BYTES MEMORY TESTED
00018000 BYTES MEMORY TESTED
0001A000 BYTES MEMORY TESTED
0001C000 BYTES MEMORY TESTED
0001E000 BYTES MEMORY TESTED
00020000 BYTES MEMORY TESTED
TESTED COMPLETED
HIT ANY KEY TO CONTINUE ......
DUAL PORT RAM TEST
The dual port RAM test is used to verify the FIFO area in the dual port RAM.
The test pattern and procedure is the same as described above for the local RAM.
That is, first a shifting 1’s pattern is written, read and verified for each location.
This is followed by a shifting 0’s pattern. If an error occurs, its address, expected
data and actual data are displayed. Progress messages are displayed as shown in
Example 3–27.
Example 3–27 Dual Port RAM Test
DUAL PORT RAM TEST . STARTING ADDRESS ---- 00600000
00000400 BYTES MEMORY TESTED
00000800 BYTES MEMORY TESTED
00000C00 BYTES MEMORY TESTED
00001000 BYTES MEMORY TESTED
TESTED COMPLETED
HIT ANY KEY TO CONTINUE ......
MFP CHIP TEST
Proper operation of the multifunction peripheral (MFP) chip is tested by writing,
reading and verifying data in two of its read/write registers. The data patterns
consists of shifting 1’s, 01h through FFh, followed by shifting 0’s, FEh through
00h. If an error is detected, the expected data and actual data are displayed.

Fault Isolation 3–21

Fault Isolation
3.1 Service Adapter Facility
SCSI CHIP TEST
Operation of the SCSI interface controller chip is tested by resetting and
initializing the chip. The controller chip interrupts are verified.
LCA TEST
Operation of the LCS chips is tested by presetting and initializing each chip.
IMB TEST
This selection tests the IMB bus by reading and verifying identification data from
each of the installed storage modules.
SDI TEST
This section of the offline controller diagnostics is used to verify operation of the
IMB memory to SDI bus data path including interrupts and command detection.
This selection causes the SDI test’s submenu (see Example 3–28) to be displayed.
The following paragraphs describe the individual tests.
Example 3–28 SDI Tests Sample
1 -- INTERNAL TESTS
2 -- A CONTROL EXTERNAL LOOPBACK
3 -- A DATA EXTERNAL LOOPBACK
4 -- B CONTROL EXTERNAL LOOPBACK
5 -- B DATA EXTERNAL LOOPBACK
6 -- ALL EXTERNAL LOOPBACKS
7 -- INTERNAL TESTS AND ALL EXTERNAL LOOPBACKS
8 -- RETURN TO MASTER CONTROLLER TESTS
SELECT OPTIONS 1-8 :
INTERNAL TESTS
The internal tests are used to verify correct operation of the TTL serial paths and
SDI bus access to the IMB memory. These are run automatically at powerup; any
failure inhibits the system from being placed on line.
In addition, they may be run from the SAF SDI test menu. Once started they run
continuously until stopped by the operator typing a Ctrl C. Any errors detected
are printed on the screen.
There are eight internal tests in the SDI test section. These are run sequentially
and described below.
1. IORTEST
IORTEST initializes the SDI hardware and then checks the CMD_STATUS
and the SDI_STAT read-only registers for proper contents.
2. CLKTEST
CLKTEST verifies that the diagnostic clock functions properly.
3. SECTEST
SECTEST uses the diagnostic clock to generate sector and index clocks by
means of the format PAL. Both the clocks and the resulting interrupts are
checked.

3–22 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
4. ICLTEST
ICLTEST establishes an internal control loopback path and uses sector clock
out to generate SDI initialize in. The SDI initialize request bit and the SDI
initialize interrupt are verified.
5. IDLTEST
IDLTEST establishes internal control and data loopback paths. The response
transmission hardware sends valid frames to the receiver hardware using the
diagnostic clock. The resulting input commands are verified for proper data
patterns.
6. IDFTEST
IDFTEST establishes internal control and data loopback paths. The response
transmission hardware sends invalid frames to the receiving hardware
using diagnostic clock. The resulting inputs are checked for the proper data
patterns.
7. IMBTEST
IMBTEST writes data into the dual-port RAM and then uses DMA to transfer
to the IMB test area. The IMB test area is at the very end of the IMB
memory space and not used by the normal disk format. The data is then
DMA’ed from the IMB to the dual-port RAM, where it is verified.
8. SMTEST
The SMTEST is divided into two sections: SDI to IMB and IMB to SDI.
SDI to IMB establishes internal control and data loopback paths. The
response transmission hardware sends data to the receiver hardware using
the diagnostic clock. A format at index command is transmitted by means of
the diagnostic clock followed by data patterns. After the transfer is complete,
the data placed in the dual-port RAM by the DMA hardware is verified.
IMB to SDI establishes internal control and data loopback paths. A data
pattern is written in the dual-port RAM and DMA’ed to the IMB test area.
The response transmission then sends a read command to the receiver
hardware using diagnostic clock. DMA to the SDI is started and the
diagnostic clock is used to shift the input shift register while sync is searched
for. Once sync is detected, the data pattern is verified.
A CONTROL EXTERNAL LOOPBACKS
This test requires that a loopback plug (that connects the signal A Control Out
to A Control In) be installed on the SDI port A connector. The test verifies that
a serial path exists from the TTL logic section through the ECL control encoder
back through the ECL control decoder and TTL logic, and that this path functions
properly at the normal SDI clock rate. The test checks for loss of SDI control
clock and for the generation of the SDI initialize interrupt. As the test executes,
the word BUSY flashes on the display. Any errors detected are displayed. The
test runs until terminated by the operator typing Ctrl C.
A DATA EXTERNAL LOOPBACKS
This test requires that a loopback plug (that connects the signal A Read/Response
Data to A Write/Command Data) be installed on the A Port SDI connector. The
test verifies the serial path from the TTL logic section through the ECL data
encoder, back through the ECL data decoder and TTL logic. It verifies that the
loop functions properly at the normal SDI clock rate.

Fault Isolation 3–23

Fault Isolation
3.1 Service Adapter Facility
The response transmission hardware sends data to the receiver hardware. The
test checks for loss of the SDI data clock, checks that a command is received
without a packet error, has the proper bit pattern, and checks that an SDI
command interrupt is generated.
As the test executes, the word BUSY flashes on the display. All errors are
displayed. The test runs until terminated by the operator typing Ctrl C.
B CONTROL EXTERNAL LOOPBACKS
This test requires that a loopback plug (that connects signal B Control Out to
B Control In) be installed on the SDI port B connector. The test verifies that a
serial path exists from the TTL logic section through the ECL control encoder
back through the ECL control decoder and TTL logic and that this path functions
properly at the normal SDI clock rate. The test checks for loss of SDI control
clock and for the generation of the SDI initialize interrupt. As the test executes,
the word BUSY flashes on the display. Any errors detected are displayed. The
test runs until terminated by the operator typing Ctrl C.
B DATA EXTERNAL LOOPBACKS
This test requires that a loopback plug (that connects signal B Read/Response
Data to B Write/Command Data) be installed on the B Port SDI connector. The
test verifies the serial path from the TTL logic section through the ECL data
encoder, back through the ECL data decoder and TTL logic. It verifies that the
loop functions properly at the normal SDI clock rate.
The response transmission hardware sends data to the receiver hardware. The
test checks for loss of the SDI data clock, checks that a command is received
without a packet error, has the proper bit pattern, and checks that an SDI
command interrupt is generated.
As the test executes, the word BUSY flashes on the display. All errors are
displayed. The test runs until terminated by the operator typing Ctrl C.
ALL EXTERNAL LOOPBACKS
Selection of option 6 by the operator causes each of the four external loopback
tests described in the following paragraphs to be run in sequence.
On each alternate pass the word BUSY is displayed on the terminal if no errors
have occurred. Any errors are displayed. The test runs until terminated by the
operator typing Ctrl C.
INTERNAL TESTS AND ALL EXTERNAL LOOPBACKS
Selection of option 7 by the operator causes the internal test to be executed,
followed by the external loopback tests described in the following paragraphs to
be run in sequence.
On each alternate pass the word BUSY is displayed on the terminal if no errors
have occurred. Any errors are displayed. The test runs until terminated by the
operator typing Ctrl C.

3–24 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
3.1.4.9.3 Backup Disk Tests Selection of this option displays the backup disk
test submenu to be displayed as shown in Example 3–29.
Selection of the surface scan option causes the disk to be scanned on a block-byblock basis. As each block is read, the transfer is checked for errors. Any errors
detected are reported on the display. Once the selection is made, the maximum
LBN number is displayed. As the test progresses, the current LBN being tested
is displayed (see Example 3–30). The operator may abort the test at any time by
typing a character.
Selection of the random reads options causes the disk to be scanned on a block
basis in random order. As a block is read, the transfer is checked for errors. The
operator may abort the test at any time by a character.
Example 3–29 Backup Disk Test Sample
1 -- SURFACE SCAN
2 -- RANDOM READS
3 -- RETURN TO MAIN MENU
SELECT OPTIONS 1-3 :

Example 3–30 LBN Tested Sample
1 -- SURFACE SCAN
2 -- RANDOM READS
3 -- RETURN TO MAIN MENU
SELECT OPTIONS 1-3 :
MAX LBN = 1,310,720
Press any key to abort scan
LBN # 2.384
3.1.4.9.4 Display Error Log This selection causes the display menu to be
entered. The operations available to the operator are identical to those described
in Section 3.1.4.2.
3.1.4.9.5 IMB Memory Exerciser The IMB memory exerciser allows all or any
portion of the installed memory to be tested. The test consists of first writing a
pattern beginning with the starting pattern selected and incrementing by one
for each longword (32 bits). A second pass reads each location in sequence and
verifies the data.
The operator may select both the starting and ending address to be tested.
Address selection is on eight longword, 32-byte boundaries. During the test, ECC
generation and checking are disabled.
Example 3–31 shows the dialog on the terminal when the IMB memory exerciser
is selected.
•

The starting address is selected; the default is 0, the beginning of installed
memory.

•

The ending address is selected; the default is the end of installed memory.

Fault Isolation 3–25

Fault Isolation
3.1 Service Adapter Facility
•

Report interval allows the operator to select the frequency that the status line
is updated to while the test is being performed. The default value is 1000;
update every 1000 addressed (8 longwords). It should be noted that the larger
the selection, the faster that the exerciser will run.

•

Starting pattern allows for the selection of the data pattern to be used.
During writes, this value is incremented for each successive address.

•

Halt flag when set to a 1 causes the exerciser to stop whenever an error is
detected. The operator must type a character to continue. When the flag is
set to a 0, any error(s) are reported and the exerciser continues to run.

•

Report error flag when set to a 1 allows each detected error to be reported on
the terminal. If set to a 0, any errors detected are not reported.

•

Write flag when set to a 1 enables the write pass. When set to a 0, the write
pass is not performed.

•

Read flag when set to a 1 enables the read/verify pass. When set to a 0, the
read/verify pass is not performed.

•

Increment seed flag, if set to a 1, causes the seed (starting pattern) to be
incremented by one for each pass of the memory exerciser. If set to a 0, the
seed remains constant for each pass of the exerciser.

Once the final entry in the dialog described above is complete, the exerciser
starts running. Once started the exerciser continues to run until either an error
is detected and the halt flag is set, or until the operator types a Ctrl C. Typing
Ctrl C causes the advanced monitor to return to the main menu. The operator is
notified that the memory must be formatted before the system may be placed on
line.
Example 3–31 shows an example of the status line displayed while the exerciser
is running.
Example 3–31 IMB Memory Exerciser
* * * * * E S E 5 0
^C to abort

M E M O R Y

E X E R C I S O R * * * * *

ESE50 Memory Size = 640 MeagBytes
Start
[
0]:
End
[1400000]:
Report Interval
[ 1000]:
Starting Pattern
[
0]:
Halt Flag
[
1]:
Report Error Flag [
1]:
Write Flag
[
1]:
Read Flag
[
1]:
Increment Seed Flag [
1]:
WRITE mmp_address = 00010000 Pattern Increments from 00000000
3.1.4.9.6 Scan IMB Memory The operator may use this to test the installed
memory of ECC errors. The test is nondestructive. When selected the number
of the maximum LBN is displayed and testing starts. As the test progresses, the
LBN being tested is displayed. Any errors are displayed. Example 3–32 shows
the terminal dialog when the IMB memory scan is running.

3–26 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
Example 3–32 Terminal Dialog
1 -- SYSTEM VERIFICATION
2 -- CONTROLLER TEST
3 -- BACKUP DISK TESTS
4 -- DISPLAY ERROR LOG
5 -- IBM MEMORY EXERCISER
6 -- SCAN IBM MEMORY
7 -- RETURN TO MAIN MENU

SELECT OPTION 1-7 :
Max LBN = 1,310,720
Press any key to abort scan
LBN # 9.472
3.1.4.9.7 TEST SGL BIT ERR LOGIC This test verifies the single bit detection
and correction logic operation. It inserts a known correctable error and verifies
the ECC logic detects and corrects it.
3.1.4.9.8 TEST DBL BIT ERR LOGIC This test verifies the double bit detection
and correction logic operation. It inserts a known uncorrectable error and verifies
that it is detected.
3.1.4.9.9 EDAC TEST The EDAC test verifies the operation of the ECC chip. It
checks that it properly detects, corrects and reports data error.
3.1.4.10 Patrol Diagnostics
When the patrol diagnostics are selected, the patrol diagnostic submenu is
displayed (refer to Example 3–33). The submenu allows the patrol diagnostics to
be enabled or disabled.
The IMB SCRUB enables soft errors scrubbing in the storage arrays. If a single
bit error is detected on a read, the word is written back to the corrected array.
The OCP TEST enables a periodic communications test with the OCP. This test
ensures that the OCP is operational in event of an error or status change.
Example 3–33 Patrol Diagnostic Submenu
1 -- IMB SCRUB ENABLED
2 -- OCP TEST ENABLED
3 -- RETURN TO MAIN MENU
SELECT OPTION 1-3 :
3.1.4.11 Manual Save
Using this selection, the operator may perform a manual save of the IMB
memory contents to the backup disk. The operation performed is identical to
the automatic backup during a power failure except power remains applied to the
system. There is no check made of the IMB memory contents and as long as the
save operation completes successfully, the saved volume is marked VALID.

Fault Isolation 3–27

Fault Isolation
3.1 Service Adapter Facility
3.1.4.12 Manual Restore
This selection allows the operator the option of restoring the contents of the
backup disk to the IMB memory. If the volume on the backup disk is VALID, the
operation completes automatically once the selection is made. If the volume on
the backup disk is marked IN_VALID or NO_DATA, the operator is notified and
given the choice of continuing the restore or aborting and returning to the main
menu.
3.1.4.13 Enable SDI Special Functions
The ESE50 includes a series of special functions that are used to display realtime system status while the unit is on line to the host. Selection of this option
invokes these features which are called by means of key word entries. Once
the special functions are enabled, normal SAF functions are not available until
control is returned by disabling the special functions.
When selected, the operator is notified to enter the key word for the desired
function when the main menu is displayed. Any key entry causes the main menu
to be displayed. Example 3–34 shows the features which may be called from the
special functions. The following paragraphs describe these features.
Example 3–34 SDI Special Functions
6 -- MANUAL RESTORE
7 -- ENABLE SDI SPECIAL FUNCTIONS
8 -- POWER MONITOR
SELECT OPTION 1-8 : p
Illegal Terminal Input -- Valid Commands Are:
log
short
long
off
clear
status
reset
dvar
mon

----------

Display Logging Information
Display Functions in Short Form
Display Functions in Log Form
Turn Display Off
Clear Function/Error Logs
Display System Status
Reset Controller (Power On)
Display Variables
Return to Monitor

3.1.4.13.1 Log - Display Logging Information The ESE50 controller maintains
a semi-permanent log of the SDI functions received and any errors detected.
Entering the key word LOG causes this log to be displayed (see Example 3–35).
The display remains on the screen until it is redisplayed or another function is
entered.

3–28 Fault Isolation

Fault Isolation
3.1 Service Adapter Facility
Example 3–35 Display Logging Information
* * * * *

E S E 5 0

L O G G I N G

COMMAND
COUNT
SDI-RESET................ :0000 0000
SET_GROUP................ :0000 0000
CHANGE-MODE.............. :0000 0000
CHANGE-FLAGS............. :0000 0000
DIAGNOSE................. :0000 0000
DISCONNECT............... :0000 0000
AUTO-DISCONNECT.......... :0000 0000
DRIVE-CLEAR.............. :0000 0000
ERROR-RECOVERY........... :0000 0000
DRIVE-CHARACTERISTICS.... :0000 0000
DRIVE-SUBCHARACTERISTICS. :0000 0000
STATUS-COMMANDS.......... :0000 0000
SEEK-DRIVE............... :0000 0000
DRIVE-ONLINE............. :0000 0000
DRIVE-RUN................ :0000 0000
READ-MEMORY.............. :0000 0000
RECALIBRATE-DRIVE........ :0000 0000
WRITE-MEMORY............. :0000 0000
TOPOLOGY................. :0000 0000
TOTAL-FUNCTIONS.......... :0000 0000

* * * * *

LOGGING
COUNT
SUCCESSFUL-RESPONSE... :0000 0000
UNSUCCESSFUL-RESPONSE. :0000 0000
ILLEGAL COMMANDS...... :0000 0000
DRIVE_ERROR........... :0000 0000
TRANSMISSION-ERROR.... :0000 0000
LEVEL-2-ERRORE........ :0000 0000
DIAGNOSTICS-ERROR..... :0000 0000
IMB NON-EXISTANT MEM.. :0000 0000
IMB UNCORRECT. ERRORS. :0000 0000
IMB SINGLE BIT ERRORS. :0000 0000
RCT-DATA-ERRORS....... :0000 0000
RCT-DRIVE-FAULTS...... :0000 0000
RCT-CONTROL-FAULTS.... :0000 0000
RCT-PARITY-ERRORS..... :0000 0000
RCT-OVERRUN-ERRORS.... :0000 0000
NO-DATA-CLOCKS........ :0000 0000
FRAMING ERRORS........ :0000 0000
STARTING-ERRORS....... :0000 0000
CONTINUE-ERRORS....... :0000 0000
TOO-MANY-PARAMETERS... :0000 0000

3.1.4.13.2 Short - Display Functions in Short Form SDI functions received by
the ESE50 and its responses are displayed on the terminal in real time when
invoked by the keyword SHORT. The short form remains active until another
function is invoked or the display is terminated by the OFF keyword. The short
form does not interfere with the operation of the ESE50 on-line functions.
3.1.4.13.3 Long - Display Functions in Long Form The long form of the SDI
functions display provides the same function as the short form with additional
information displayed. It should be noted that the long form requires additional
processing time and can slow down system operation.
3.1.4.13.4 Off - Turn Display Off The key word OFF is used to stop either short
or long functional display once invoked.
3.1.4.13.5 Clear - Clear Functions/Error Log
SDI functions/error log.

This selection is used to clear the

3.1.4.13.6 Status - Display System Status The key word STATUS causes the
SDI GET STATUS information to be displayed on the terminal. It shows the state
of the ESE50 at the time of the status request.
3.1.4.13.7 Reset - Reset Controller (Power On)
an SDI reset to occur.

The key word RESET causes

3.1.4.13.8 DVAR - Display Variables The key word DVAR displays the GET
COMMON and GET SUBMIT characteristics on the terminal.
3.1.4.13.9 MON - Return to Monitor Entering the key word MON while in SDI
special functions causes the SAF to return to the main menu.

Fault Isolation 3–29

Fault Isolation
3.1 Service Adapter Facility
3.1.4.14 Power Monitor
The ESE50 power monitor assembly includes its own SAF functions. During
normal operation the SAF functions from the controller RS-232 port are passed
through the power monitor.
This selection causes the port to be switched and the power monitor SAF is
placed on line to the terminal. The next section of this chapter describes the
power monitor screens and functions. The power monitor remains in control of
the SAF until a switch to the controller is performed.
Refer to Section 3.1.5 for further details.

3.1.5 Power Monitor
The power monitor section of the SAF firmware is contained in a PROM
located on the power monitor assembly, and executed by the power monitor
microprocessor.
In normal operation (controller SAF on line), the RS-232 port of the controller is
passed through the power monitor. When power monitor functions are selected
from the main menu, the port is switched and the power monitor RS-232 port
is connected to the terminal. It remains connected in this configuration until a
switch (option C) back to the controller is performed.
3.1.5.1 Power Monitor Screen
Example 3–36 shows the power monitor screen. The top portion displays the
status of the ESE50 power system, while the bottom portion provides the menu
used to perform power monitor functions.
Example 3–36 Power Monitor
POWER MONITOR STATUS

FIRMWARE - L5280-001 REV 1C

MARGIN PSM1
------ ----LOGIC - N/A
FLOAT - N/A

PSM2
----NORM
NORM

BUS
---VBB --- 5.10
VCC --- 4.96
+5V --+12V -- 12.4
-5.2V - 5.16
FLOAT - 35.0

PSM1 PSM2
----- ----LOW
LOW
LOW
LOW

TIME
DATE
----- -------12:06 05/28/92
12:06 05/28/92

5.45
12.7
5.63
35.3

A. SET TIME OF DAY
B. START BATTERY TEST
C. SWITCH TO CONTROLLER
D. PSM1 LOGIC MARGIN HIGH
E. PSM1 LOGIC MARGIN LOW
F. PSM1 LOGIC NOMINAL
G. PSM1 FLOAT MARGIN LOW27
H. PSM1 FLOAT NOMINAL

3–30 Fault Isolation

TEMPERATURE
----------LOGIC - 25 C
POWER - 24 C

BATTERY
------STATUS -- READY
CHARGER - OFF
TEST ---- OFF
VLOTAGE - 30.0
I. PSM2 LOGIC MARGIN HIGH
J. PSM2 LOGIC MARGIN LOW
K. PSM2 LOGIC NOMINAL
L. PSM2 FLOAT MARGIN LOW27
M. PSM2 FLOAT NOMINAL
N. MARGIN FLOAT LOW25
O. CANCEL FLOAT LOW25

4
Error Handling
4.1 Introduction
This chapter describes the error handling mechanisms of the ESE50 electronic
storage element. It also provides information on controller/drive errors. The
following information is provided for each error condition:
•

Name of the error

•

Brief description of the error

•

Error code

•

FRU that is the most probable cause of the error

The error bits in the error byte of the generic status are:
80

Drive fault

Transmission error

Protocol error

Initialization failure (diagnostic)

Drive write protected

Error Handling 4–1

Error Handling
4.2 FRUs and FRU Numbers

4.2 FRUs and FRU Numbers
Table 4–1 lists the field replaceable units (FRUs) with a brief description and
designator.
Table 4–1 FRUs and FRU Numbers
FRU

Description

FRU Number

UPROC

Controller Module

BACKP

Backplane

MEM00

Storage Module, Physical Address 00

MEM01

Storage Module, Physical Address 01

MEM02

Storage Module, Physical Address 02

MEM03

Storage Module, Physical Address 03

MEM04

Storage Module, Physical Address 04

MEM05

Storage Module, Physical Address 05

MEM06

Storage Module, Physical Address 06

MEM07

Storage Module, Physical Address 07

MEM08

Storage Module, Physical Address 08

MEM09

Storage Module, Physical Address 09

MEM10

Storage Module, Physical Address 10

MEM11

Storage Module, Physical Address 11

MEM12

Storage Module, Physical Address 12

MEM13

Storage Module, Physical Address 13

MEM14

Storage Module, Physical Address 14

MEM15

Storage Module, Physical Address 15

MEMORY

Storage Modules, multiple

OCP

Operator Control Panel

SDI

SDI Cables/Connectors/Bulk Head Assembly

PMM

Power Monitor Module

PSM1

Power Supply Module #1

PSM2

Power Supply Module #2

BATT

Battery

DISK1

Backup Disk Unit #1

DISK2

Backup Disk Unit #2

HOST

Host Controller

OPER

Operator

4–2 Error Handling

Error Handling
4.3 ESE50 Drive Faults (Error Type - DE)

4.3 ESE50 Drive Faults (Error Type - DE)
Table 4–2 provides the error code associated with a specific drive fault syndrome
and the FRUs most likely to be at fault.
Table 4–2 Drive Faults
Error

Suspected FRU

Error Syndrome

Code

1st

2nd

RDS During Transfer

MEMORY

UPROC

Multiple RDS Transfer

MEMORY

UPROC

Nonexistent Memory

MEMORY

UPROC

Memory Controller Abort

MEMORY

CRD Overflow

MEMORY

Read/Write Safety Interrupt Without Cause

UPROC

Drive Disabled by "DD" Bit Set

Battery Failure

Low Battery Charge

OCP Failure

OCP

Backup Disk Fault

DISK1

Data Retention Backup No Data

Data Retention Backup Invalid

Over Temperature, Warning @45C

BATT

Power Supply Module 1 Fault

PSM1

PMM

Power Supply Module 2 Fault

PSM2

PMM

Over Temperature, Shutdown @50C

Over Temperature, Shutdown @55C

SPS System On

Error Handling 4–3

Error Handling
4.4 ESE50 Transmission Error (Error Type - RE)

4.4 ESE50 Transmission Error (Error Type - RE)
Table 4–3 provides the error code associated with a specific transmission error
syndrome and the FRUs most likely to be at fault.
Table 4–3 Transmission Errors
Error

Suspected FRU

Error Syndrome

Code

1st

2nd

Out of Range Enhance Mode

HOST

UPROC

SDI Frame Sequence

HOST

UPROC

SDI Checksum

HOST

UPROC

SDO Framing

HOST

UPROC

Drive Disconnect Due to Controller

HOST

SDI

Sector Overrun

UPROC

HOST

SDI Response Timed Out

HOST

UPROC

TCR and Not Read/Write Ready Fault

HOST

UPROC

Format Command and Not Enabled

HOST

UPROC

SDI Transfer

SDI

UPROC

4–4 Error Handling

Error Handling
4.5 ESE50 Protocol Error (Error Type - PE)

4.5 ESE50 Protocol Error (Error Type - PE)
Table 4–4 provides the error code associated with a specific protocol error
syndrome and the FRUs most likely to be at fault.
Table 4–4 Protocol Errors
Error

Suspected FRU

Error Syndrome

Code

1st

2nd

SDI Level 1/2 Opcode Parity

SDI

UPROC

SDI Invalid Opcode

SDI

UPROC

SDI Command Length Level 1/2

SDI

UPROC

SDI Invalid Command with Drive Error

SDI

UPROC

SDI Invalid Group Select Level 2

SDI

UPROC

SDI Write Enable/Write Protect

SDI

UPROC

SDI Transfer Command with Drive Error

HOST

UPROC

SDI Invalid Format Request

HOST

UPROC

SDI Invalid Variant Request

HOST

UPROC

SDI Invalid Command in Variant Mode

HOST

UPROC

SDI Invalid Cylinder Address

HOST

UPROC

SDI Invalid Error Recovery Level

HOST

UPROC

SDI Invalid Subunit Specified

HOST

UPROC

SDI Invalid Diagnose Memory Request

HOST

UPROC

SDI Spindle Not Ready-Seek/Recall

HOST

UPROC

Spinup Inhibited by Controller Flags

SDI Run Command/Run in Stop Position

HOST

UPROC

SDI Invalid Read Memory Region

HOST

UPROC

Not Online/Seek Command Issued

HOST

UPROC

Invalid Disconnect Command/"TT" Bit

HOST

UPROC

Invalid Write Memory Control/Offset

HOST

UPROC

Invalid Command During Topology Command

HOST

UPROC

Error Handling 4–5

Error Handling
4.6 ESE50 Initialization Faults (Error Type - DF)

4.6 ESE50 Initialization Faults (Error Type - DF)
Table 4–5 provides the error code associated with a specific initialization fault
syndrome and the FRUs most likely to be at fault.
Table 4–5 Initialization Faults
Error

Suspected FRU

Error Syndrome

Code

1st

2nd

IMB Access

UPROC

MEMORY

Data Retention, No Disk Response

DISK1

FIFO Data

UPROC

Single Bit Correction Failure

UPROC

Power Up Test Failure

UPROC

Multiple Bad Memory Arrays

MEMORY

UPROC

Configuration Fault

MEMORY

UPROC

Bad Array Module, 0

MEM00

Bad Array Module, 1

MEM01

Bad Array Module, 2

MEM02

Bad Array Module, 3

MEM03

Bad Array Module, 4

MEM04

Bad Array Module, 5

MEM05

Bad Array Module, 6

MEM06

Bad Array Module, 7

MEM07

Bad Array Module, 8

MEM08

Bad Array Module, 9

MEM09

Bad Array Module, 10

MEM10

Bad Array Module, 11

MEM11

Bad Array Module, 12

MEM12

Bad Array Module, 13

MEM13

Bad Array Module, 14

MEM14

Bad Array Module, 15

MEM15

IORTEST Fault

UPROC

CLKTEST Fault

UPROC

SECTEST Fault

UPROC

IDLTEST Fault

UPROC

IDFTEST Fault

UPROC

ICLTEST Fault

UPROC

IMBTEST Fault

UPROC

SMTEST Fault, IMB to SDI

UPROC

SMTEST Fault, SDI to IMB

UPROC

Internal SDI Loopback Hung

UPROC

(continued on next page)

4–6 Error Handling

Error Handling
4.6 ESE50 Initialization Faults (Error Type - DF)
Table 4–5 (Cont.) Initialization Faults
Error

Suspected FRU

Error Syndrome

Code

1st

2nd

IMB Header Verify, BAD

UPROC

MEMORY

IMB Header Verify, Abort

UPROC

MEMORY

IMB Format, Noack/Abort

UPROC

MEMORY

IMB Initialize, Noack/Abort

UPROC

MEMORY

IMB ECC Check, Noack/Abort

UPROC

MEMORY

IMB ECC Check, Controller

UPROC

MEMORY

Invaild Test Number

4.7 ESE50 Write Protected (Error Type - WE)
Table 4–6 provides the error code associated with a specific write protection error
syndrome and the FRUs most likely to be at fault.
Table 4–6 Write Protected Errors
Error

Suspected FRU

Error Syndrome

Code

1st

2nd

Write/Format While Protected

Host

UPROC

Error Handling 4–7

5
ESE50 Rev A and B — Removal and
Replacement Procedures
5.1 Introduction
This chapter describes removal and replacement procedures for the ESE50 FRUs.
The following FRU does not require the ESE50 to be removed from its external
enclosure:
OCP, part number 29-30072-01
The following FRUs require the ESE50 to be removed from its external enclosure:
OCP cable

29-30076-01

Controller module

29-30068-01/02

Array module(s)

29-30073-01

Power monitor module (ESE50 Rev A
and B)

29-30069-01

Power monitor module (ESE50 Rev A, B,
C)

29-31173-01

Power supply module(s)

29-30070-01

RZ27 disk drive

RZ27-E

RZ35 disk drive

RZ35-E

RZ35/27 disk backup assembly (ESE50
Rev A and B)

29-30075-01

RZ35/27 disk backup assembly (ESE50
Rev A, B, C)

29-31171-01

Battery pack

12-38755-01

AC input box

29-30071-01

Fan (ESE50 Rev A and B)

29-30074-01

Fan (ESE50 Rev C)

29-31172-01

Follow the steps in Section 5.4 to remove the ESE50 from its external enclosure
and gain access to the ESE50 internal FRUs. Then follow the steps in the section
pertaining to the FRU you need to remove and replace. Finally, follow the steps
in Section 5.10 before placing the ESE50 back in its external enclosure.

ESE50 Rev A and B — Removal and Replacement Procedures 5–1

ESE50 Rev A and B — Removal and Replacement Procedures
5.2 Precautions

5.2 Precautions
Note
When repairing the ESE50, always perform a backup of all data to either
another disk or tape, if available.

Before attempting any removal or replacement procedure, read the following
precautions:
•

Only qualified service personnel should remove or install FRUs.

•

Before you remove or install FRUs, power down the system. Refer to
Section 5.4.1 for the orderly shutdown procedure.

•

Static electricity can damage integrated circuits. Always use a grounded
antistatic wrist strap (PN 29-11762-00) and grounded work surface when
working with the internal parts of a computer system.

5–2 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.3 Removing and Replacing the OCP

5.3 Removing and Replacing the OCP
First, perform the following steps:
1. Perform backup to disk or tape.
2. Do an OpenVMS dismount.
3. Power down the ESE50.
Remove the OCP by grasping the OCP and pull gently forward (Figure 5–1).
Once the OCP is free, place it aside.
Refer to the system or cabinet service information for opening any doors or panels
to gain access to the ESE50.
Replace the OCP and labels.
Figure 5–1 Removing/Replacing the OCP
ESE50 External
Enclosure

ZK-6019A-FH

ESE50 Rev A and B — Removal and Replacement Procedures 5–3

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50

5.4 Removing the ESE50
This section describes how to remove the ESE50 from its external enclosure. It
does not describe the mechanical procedures for removing the ESE50 from the
system or cabinet enclosure. Refer to the system or cabinet enclosure service
guide or manual for these procedures.
Refer to the system or cabinet service information for opening any doors or panels
to gain access to the ESE50.
Once the ESE50 is removed from its external enclosure, follow the steps in
Section 5.4 to gain access to the internal FRUs.

5.4.1 Shutting Down the ESE50
Before performing an FRU procedure, do the following:
1. Perform backup to disk or tape.
2. Do an OpenVMS dismount.
3. Spin down the unit by pressing the RUN/STOP switch (out).
Note
Unit is performing an unload/save operation which may take up to 15
minutes.

4. Once the RUN LED is off, power down the ESE50 (switch at rear of unit).

5–4 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
5.4.2 Disconnecting the ESE50
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
Open the rear door of the system or cabinet enclosure according to the enclosure
service guide or manual.
Once you have gained access to the rear of the ESE50, follow these steps. Refer
to Figure 5–2.
1. Place the ON/OFF switch to the "0" or off position.
2. Disconnect the AC power cord at the rear of the ESE50.
3. Loosen the screws on the SDI cables and remove the cables.
Figure 5–2 Rear View of ESE50

PORT

A
SDI CABLE
CONNECTIONS
AC POWER SWITCH
AC RECEPTACLE

PORT

B
1
0

FUSE COVER

ESE50 Rev A and B — Removal and Replacement Procedures 5–5

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
5.4.3 Gaining Access to the ESE50 Internal FRUs
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
This section describes how to remove the ESE50 from its external enclosure,
remove the top shock mount assembly, and the right and left side covers.
Note that the ESE50 can be mounted either right-side up or up-side down in its
external enclosure. This allows the same external enclosure to be used in various
system and cabinet enclosures such as the SA600, SA800, and SA900 series
products.
Once you have removed the external enclosure (containing the ESE50) from the
system or cabinet enclosure, place the external enclosure on a level and stable
work surface, such as a table.
Perform the following steps to remove the ESE50 from the external enclosure:
1. Remove the OCP by grasping the OCP (see Section 5.3) and pull gently
forward. Once the OCP is free, place it aside.
2. Use a 5/32–inch Allen wrench to loosen the four Allen head captive screws
securing the ESE50 to the front of the external enclosure (Figure 5–3). Do not
fully loosen one screw at a time. Back each screw out part way, then another
until all are loose.
Figure 5–3 Removing/Replacing the Front Panel Assembly

Captive
Allen
Screws

OCP
Connector

Captive
Allen
Screws

SHR-010000442-10-MPS

5–6 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
3. Allow the front bezel to swing down and lie flat on the work surface
(Figure 5–4). Ensure that the OCP cable has enough slack to allow the
front bezel to lie flat.
Caution
Ensure that the front panel cable does not become pinched between the
fan assembly and the main chassis.

Figure 5–4 Removing/Replacing the Front Panel Assembly

RS-232 Connector

OCP Connector

SHR-010000442-11-MPS

ESE50 Rev A and B — Removal and Replacement Procedures 5–7

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
4. Loosen the two screws on either side of the OCP cable and disconnect it
(Figure 5–5).
5. Loosen, but do not remove, the four captive screws located on the rear panel
of the external enclosure.
Figure 5–5 Removing/Replacing the OCP Cable

OCP Cable Screws

SHR-010000442-15-MPS

5–8 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
6. Note the orientation of the ESE50 in its external enclosure by locating the
handle by the fan.
a. If the RS-232 connector is below the fan, then rotate the entire enclosure
180 degrees before proceeding.
b. If the RS-232 connector is above the fan, then proceed.
7. Grip the handle and pull forward gently until the ESE50 is out of the external
enclosure (Figure 5–6). Place the external enclosure out of the way.
Figure 5–6 Removing/Replacing the ESE50

SHR-010000442-14-MPS

ESE50 Rev A and B — Removal and Replacement Procedures 5–9

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
8. Remove the top shock mount assembly.
a. At the rear of the ESE50, disconnect the RS-232 cable on the shock mount
assembly at the power monitor module (Figure 5–7).
Figure 5–7 Removing/Replacing the RS-232 Cable

RS-232
Connection

Cover
Screws

SHR-010000442-16-MPS

5–10 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
b. Loosen the top two captive screws on the fan assembly (Figure 5–8).
Figure 5–8 Fan Assembly, Top Captive Screws

Captive Screws

Cover
Screws

Handle
SHR-010000442-12-MPS

ESE50 Rev A and B — Removal and Replacement Procedures 5–11

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
c.

Loosen the top four captive screws on the shock mount assembly
(Figure 5–9).

d. Lift the shock mount assembly off and place it aside.
Figure 5–9 Removing/Replacing the Top Shock Mount Assembly

Cover Screws

Cover Screws
SHR-010000442-22-MPS

9. Remove all of the Phillips head screws located on the front (4), rear (4),
and top (6) of both covers (Figure 5–10). Once all of the screws have been
removed, pull the right side cover straight up and off and then the left side
cover up and off.

5–12 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
Figure 5–10 Removing/Replacing the Covers

Cover Screws

Cover Screws
SHR-010000442-21-MPS

Captive Screws

Cover
Screws

Handle
SHR-010000442-12-MPS

(continued on next page)

ESE50 Rev A and B — Removal and Replacement Procedures 5–13

ESE50 Rev A and B — Removal and Replacement Procedures
5.4 Removing the ESE50
Figure 5–10 (Cont.) Removing/Replacing the Covers

Cover
Screws

SHR-010000442-13-MPS

5.5 Removing and Replacing ESE50 Modules
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
This section describes how to remove and replace ESE50 modules. Refer to
Figure 5–11.
Once you have removed the ESE50 in its external enclosure using Section 5.4 as
a reference, use the following steps to remove and replace the ESE50 modules.
Warning
Static electricity can damage integrated circuits. Always use a grounded
antistatic wrist strap (PN 29-11762-00) and grounded work surface when
working with the internal parts of a computer system.

5–14 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.5 Removing and Replacing ESE50 Modules
Figure 5–11 ESE50 Modules
Right Side
Controller Module

F
a
n

Array Module
Array Module
Array Module

08
* 09
10
11
12
13
RZ35 Disk Drive
14
15

00
01 *
02
03
04
05
06
07

Array Module
Array Module
Array Module
Array Module
Array Module
Array Module
Array Module

Left Side
Power Monitor Module
Power Supply Module
Power Supply Module
F
a
n
AC Input Box

Battery Pack

Note: 600 MB variant utilizes two power supply modules.
* Denotes location of module for 120 MB variant.
ZK-6076A-FH

ESE50 Rev A and B — Removal and Replacement Procedures 5–15

ESE50 Rev A and B — Removal and Replacement Procedures
5.5 Removing and Replacing ESE50 Modules
5.5.1 Controller and Array Modules
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
1. To remove a module from the ESE50 backplane:
a. Insert a small screwdriver, scribe, or needle-nose pliers into the removal
holes on either side of the module.
b. Pull the corner of the module gently forward until the module is free from
the backplane.
c.

Grasp the center of the module with your fingers and pull the module the
rest of the way out (Figure 5–12).

2. To replace a module into the ESE50 backplane:
a. Slide the module into its appropriate slot.
b. Use your thumbs to push the module into the backplane.
c.

Ensure that the module is properly seated.

3. Proceed to Section 5.10.
Figure 5–12 Removing/Replacing the Controller Module

Controller
Module

SHR-010000442-06-MPS

5–16 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.5 Removing and Replacing ESE50 Modules

5.5.2 Power Monitor and Power Supply Modules
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
1. To remove a module from the ESE50 backplane:
a. When removing a power supply module you must first disconnect the
connector (refer to Figure 5–13) connecting the module to the AC input
box.
Figure 5–13 Removing/Replacing the Power Supply Module

AC Connector
SHR-010000442-26-MPS

ESE50 Rev A and B — Removal and Replacement Procedures 5–17

ESE50 Rev A and B — Removal and Replacement Procedures
5.5 Removing and Replacing ESE50 Modules
b. Insert a small screwdriver, scribe, or needle-nose pliers into the removal
holes on either side of the module.
c.

Pull the corner of the module gently forward until the module is free from
the backplane.
Caution

When removing or replacing either module, ensure that the heat sinks on
the power supply module do not come in contact with the underside of the
power monitor module.

d. Grasp the center of the module with your fingers and pull the module the
rest of the way out (Figure 5–14).
2. To replace a module into the ESE50 backplane:
a. Slide the module into its appropriate slot.
b. Use your thumbs to push the module into the backplane.
c.

Ensure that the module is properly seated.

3. Proceed to Section 5.10.
Figure 5–14 Removing/Replacing the Power Monitor Module

Power
Monitor
Module

SHR-010000442-17-MPS

5–18 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.6 Removing and Replacing the RZ35 Disk Drive

5.6 Removing and Replacing the RZ35 Disk Drive
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
This section describes how to remove and replace the RZ35 disk drive from the
ESE50 and the slide module it resides on.
Note
An RZ35 disk drive can be replaced with an RZ27 disk drive.

Once you have removed the ESE50 in its external enclosure using Section 5.4 as
a reference, use the following steps to remove and replace the RZ35 disk drive:
1. To remove a RZ35 from the ESE50 backplane, use your fingers to pull the
module and RZ35 from the backplane (Figure 5–15).
Figure 5–15 Removing/Replacing the RZ35 with Module

RZ35
SHR-010000442-20-MPS

ESE50 Rev A and B — Removal and Replacement Procedures 5–19

ESE50 Rev A and B — Removal and Replacement Procedures
5.6 Removing and Replacing the RZ35 Disk Drive
2. To remove the disk drive from its module (Figure 5–16):
a. Remove the four Phillips head screws securing the drive to the module.
b. Disconnect the signal cable and then the power cable from the rear of the
drive.
Figure 5–16 Removing/Replacing RZ35 from Module

Phillip Screws

Power
Connector

Signal
Connector

Phillip Screws
SHR-010000442-18-MPS

5–20 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.6 Removing and Replacing the RZ35 Disk Drive
c.

Remove the drive and place it aside. You will need to check its option
connector jumpers (Figure 5–17).

3. Replace an RZ35 into the ESE50 backplane.
a. Set the jumpers on the option connector to the setting of the previous
drive.
b. Connect the power cable and then the signal cable.
c.

Place the disk drive on its module and secure with the four Phillips
screws.

4. Push the module and RZ35 back into the backplane. Be sure the module is
properly seated.
5. Proceed to Section 5.10.
Figure 5–17 RZ35 Jumper Settings
REAR VIEW OF AN RZ35 DISK DRIVE

49
50

1
2
SCSI Interface Connector

Power

FRONT VIEW OF AN RZ35 DISK DRIVE

Option Connector
2
20
1

Note jumper settings
2

19
SCSI ID = 1
Spin Up on Power Up

ESE50 Rev A and B — Removal and Replacement Procedures 5–21

ESE50 Rev A and B — Removal and Replacement Procedures
5.7 Removing and Replacing the Battery Backup Pack

5.7 Removing and Replacing the Battery Backup Pack
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
This section describes how to remove and replace the battery backup pack.
Once you have removed the ESE50 in its external enclosure using Section 5.4
as a reference, use the following steps to remove and replace the battery backup
pack:
1. Remove the power monitor and power supply modules as described in
Section 5.5.2.
2. Locate and remove the nut/standoff (facing the left side of the ESE50) at the
bottom of the battery pack bracket near the fan. Use a 5/16–inch nutdriver
and remove the nut/standoff. Be careful not to damage the fan (Figure 5–18).
3. Remove the two Phillips head screws at the other end of the bracket.
Figure 5–18 Removing/Replacing the Battery Pack

Battery Cable
(J90)
SHR-010000442-05-MPS

4. Disconnect the battery pack (J90 on backplane) and remove it (Figure 5–19).
5. Place the battery pack in the ESE50 and connect the cable to J90.
6. Secure the battery pack bracket with two Phillips head screws.

5–22 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.7 Removing and Replacing the Battery Backup Pack
7. Replace the nut/standoff (facing the left side of the ESE50) at the bottom of
the battery pack bracket near the fan. Be careful not to damage the fan.
8. Replace the power monitor and power supply modules as described in
Section 5.5.2.
9. Proceed to Section 5.10.
Figure 5–19 Battery Pack Cable (J90)

Standoff

Battery Pack
Bracket
Phillips
Screws
SHR-010000442-04-MPS

ESE50 Rev A and B — Removal and Replacement Procedures 5–23

ESE50 Rev A and B — Removal and Replacement Procedures
5.8 Removing and Replacing the AC Input Box

5.8 Removing and Replacing the AC Input Box
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
This section describes how to remove and replace the AC input box.
Once you have removed the ESE50 in its external enclosure using Section 5.4 as
a reference, use the following steps to remove and replace the AC input box:
1. Remove the power monitor and power supply modules as described in
Section 5.5.2.
2. Locate and remove the nut (facing the left side of the ESE50) at the bottom of
the battery pack bracket near the fan. Use a 5/16–inch nutdriver and remove
the nut. Be careful not to damage the fan.
3. Remove the two Phillips head screws at the other end of the bracket.
4. Disconnect the battery pack (J90 on backplane) and remove it.
5. Remove the four Phillips head countersink screws that hold the AC box
(Figure 5–20).
Figure 5–20 AC Input Box Screws

Phillips Screws

SHR-010000442-02-MPS

5–24 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.8 Removing and Replacing the AC Input Box
6. Pull the AC box out enough to gain access to its cables (Figure 5–21).
7. Unplug at P70 and J71.
8. Use needle-nose pliers to remove the two wires from the ON/OFF switch.
REMEMBER, blue on top and brown on the bottom.
9. Use needle nose-pliers to replace the two wires from the ON/OFF switch.
REMEMBER, blue on top and brown on the bottom.
10. Plug the cables to P70 and J71.
11. Set the voltage to the same setting as the previously removed AC box.
12. Place the AC box back into the ESE50.
13. Replace the four Phillips head countersink screws that hold the AC box.
14. Place the battery pack in the ESE50 and connect the cable to J90.
15. Secure the battery pack bracket with two Phillips head screws.
16. Replace the nut (facing the left side of the ESE50) at the bottom of the
battery pack bracket near the fan. Be careful not to damage the fan.
17. Replace the power monitor and power supply modules as described in
Section 5.5.
18. Proceed to Section 5.10.
Figure 5–21 Removing/Replacing the AC Input Box

Inout Box
To AC Input

SHR-010000442-24-MPS

ESE50 Rev A and B — Removal and Replacement Procedures 5–25

ESE50 Rev A and B — Removal and Replacement Procedures
5.9 Removing and Replacing the Fan Assembly

5.9 Removing and Replacing the Fan Assembly
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
This section describes how to remove and replace the fan assembly.
Once you have removed the ESE50 in its external enclosure using Section 5.4 as
a reference, use the following steps to remove and replace the fan assembly:
1. Loosen all four captive screws and carefully pull the fan assembly away from
the unit.
2. Disconnect the fan cable at J35 on the backplane (Figure 5–22).
3. Remove the fan assembly by loosening the bottom two captive screws.
4. Replace with the new fan assembly and connect the fan cable to J35.
5. Secure the fan with all four captive screws only at this time.
6. Proceed to Section 5.10.
Figure 5–22 Removing/Replacing the Fan Cable

Fan
Cable

SHR-010000442-25-MPS

5–26 ESE50 Rev A and B — Removal and Replacement Procedures

ESE50 Rev A and B — Removal and Replacement Procedures
5.10 Placing the ESE50 into External Enclosure

5.10 Placing the ESE50 into External Enclosure
Do not disconnect the unit until you have performed all the steps in Section 5.4.1.
Perform the following steps to place the ESE50 into the external enclosure:
1. Replace the left and right side cover (Figure 5–10) and secure it with Phillips
head screws located on the front (4), rear (4), and top (6).
2. Replace the top shock mount assembly (Figure 5–9).
a. Place the shock mount assembly on the unit.
b. Tighten the top four captive screws on the shock mount assembly.
c.

Tighten the top two captive screws on the fan assembly.

d. At the rear of the ESE50, connect the cable from the shock mount
assembly to the power monitor module (Figure 5–7).
3. Remember the proper orientation for the ESE50. The RS-232 connector
should be above the fan assembly.
4. Place the ESE50 into the external enclosure; use the handle and push the
ESE50 back into the external enclosure (Figure 5–6).
5. Tighten the four captive screws located on the rear panel of the external
enclosure.
6. Lay the front bezel down in front of the ESE50 (fan assembly facing you)
(Figure 5–4).
7. Connect the OCP cable and tighten the two screws on either side of the OCP
cable to secure it (Figure 5–5).
Caution
Ensure that the front panel cable does not become pinched between the
fan assembly and the main chassis.

8. Use a 5/32–inch Allen wrench to tighten the four Allen head captive screws
securing the ESE50 to the front of the external enclosure. Do not fully loosen
a screw at a time. Back each screw out, then another until all are loose
(Figure 5–3).
9. Replace the operator control panel (Figure 5–1).

ESE50 Rev A and B — Removal and Replacement Procedures 5–27

6
ESE50 Rev C — Removal and Replacement
Procedures
6.1 Introduction
The maintenance philosophy for the ESE50 unit (Rev. C) is the replacement of
a field replaceable unit. This chapter describes the removal and replacement
procedures of the field replaceable units (FRUs).
The following FRU does not require the ESE50 to be removed from its external
enclosure:
OCP, part number 29-30072-01
The following FRUs require that the ESE50 be removed from its external
enclosure:
FRU

Part Number

OCP cable

29-30076-01

Controller module

29-30068-02

Array modules 2

29-30073-01

Power monitor module

29-31173-01

Power supply module

29-30070-01

RZ27 disk drive 1 , 2

RZ27-E

RZ27 disk backup assembly 2

29-31171-01

Battery pack

12-38755-01

AC input box

29-30071-02

Fan

29-31172-01

1 All AA/BB, BA/BB, and DA/DB variants for the ESE50 Rev C will use an RZ27 disk drive.
2 These FRUs are backward compatible with Rev. A and B ESE50 units.

ESE50 Rev C — Removal and Replacement Procedures 6–1

ESE50 Rev C — Removal and Replacement Procedures
6.2 ESE50 Shutdown

6.2 ESE50 Shutdown
This section describes the recommended procedures for an orderly ESE50
shutdown whenever maintenance service is to be performed.
Caution
When repairing the ESE50, always perform a backup of all data to either
another disk or tape, if available.
All AA/BB, BA/BB, and DA/DB variants for the ESE50 Rev C will use an
RZ27 disk drive.

6.2.1 Precautions
Before attempting any removal or replacement procedure, read the following
precautions:
•

Only qualified and authorized service personnel should remove or install
FRUs.

•

Before you remove or install FRUs, perform a system backup and then power
down the system.

•

Static electricity can damage integrated circuits. Therefore, alway use a
grounded antistatic wrist strap (PN 29-11762-00) and a grounded work
surface when working with the internal parts of a computer system.

6.2.2 Shutdown Procedure
Before performing an FRU procedure, do the following:
1. Perform a system backup to disk or tape.
2. Initiate an OpenVMS dismount operation.
3. Spin down the ESE50 disk drive by pressing the RUN/STOP switch (out
position).
Note
The ESE50 will perform an unload/save operation, which may take
approximately eight minutes to complete.

4. Once the RUN LED is off, power down the ESE50 (the ac power switch at
rear of unit).

6.3 ESE50 Assembly
This section describes how to remove the ESE50 assembly from its external
enclosure. It does not describe the mechanical procedure for removing the ESE50
from a system or cabinet enclosure. Refer to the system or cabinet enclosure
documentation for these procedures.
Refer to the system or cabinet enclosure documentation for information on
opening any doors or panels to gain access to the ESE50.
Once the ESE50 is removed from its external enclosure, follow the steps in
Section 6.5 to gain access to its internal FRUs.

6–2 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.3 ESE50 Assembly
6.3.1 Disconnecting the ESE50
Open the rear door of the system or cabinet enclosure, according to the procedures
detailed in the enclosure documentation.
Note
Do not disconnect the ESE50 hardware until all the steps in Section 6.2.2
and Section 6.3.1 have been performed.
With access to the rear of the ESE50, perform the steps listed below while
referring to Figure 6–1:
1. Set the ac power switch to 0 (off).
2. Unplug the power cord from the unit’s ac power receptacle.
3. Disconnect the SDI cable(s), use a screwdriver to loosen the screws on the
SDI cable connector(s), and then remove the cable(s).
Figure 6–1 ESE50 — Rear View

SDI Cable
Connections

AC Power Switch
AC Power Receptacle

AC Fuse
ZK-6020A-FH

ESE50 Rev C — Removal and Replacement Procedures 6–3

ESE50 Rev C — Removal and Replacement Procedures
6.4 Operator Control Panel Removal

6.4 Operator Control Panel Removal
To remove the operator control panel (OCP) from the ESE50, perform the
following steps:
Note
Do not disconnect the ESE50 until all the steps in Section 6.2.2 and
Section 6.3.1 have been performed.
1. Access the ESE50 assembly unit by referring to the system or cabinet
documentation for information on opening any doors or panels to gain access
to the ESE50.
2. Remove the operator control panel (OCP) by grasping the panel and gently
pulling forward (Figure 6–2). Once the OCP is free, place it aside.
3. Replace the OCP and its labels.
Figure 6–2 OCP — Removable/Replacement
ESE50 External
Enclosure

ZK-6019A-FH

6–4 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.5 Accessing the Internal FRUs

6.5 Accessing the Internal FRUs
This section describes the removal of the ESE50 from its external enclosure, its
right and left side covers, and its top shock mount assembly.
Note
Do not disconnect the ESE50 until all the steps in Section 6.2.2 and
Section 6.3.1 have been performed.
The ESE50 can be mounted either right-side up or up-side down within
its external enclosure. This allows the same external enclosure to be used
in various system or cabinet enclosures. For example: the SA600, SA800,
and the SA900 series products.

6.5.1 Front Panel Removal
Perform the following steps to remove the front panel assembly:
1. Remove the ESE50 and its external enclosure from either the system or
cabinet enclosure.
2. Place the ESE50 on a level and stable work surface, such as a table.
3. Remove the operator control panel (OCP) by grasping the panel and gently
pulling it forward (Figure 6–2). Once the OCP is free, place it aside.
4. Loosen the four Allen head captive screws, using a 5/32-inch Allen wrench,
that secure the ESE50 to the front of the external enclosure (Figure 6–3).
5. Allow the front bezel to swing down and rest flat on the work surface
(Figure 6–4).
Caution
Ensure that the OCP cable has enough slack to allow the front bezel to
rest flat and that the cable does not become pinched between the fan
assembly and the main chassis.

6. Loosen the two screws on either side of the OCP cable (Figure 6–5) and
disconnect the cable.

ESE50 Rev C — Removal and Replacement Procedures 6–5

ESE50 Rev C — Removal and Replacement Procedures
6.5 Accessing the Internal FRUs
Figure 6–3 Front Panel Assembly — Removable
Captive
Allen
Screws
OCP
Connector

Captive
Allen
Screws

ZK-6021A-FH

Figure 6–4 Front Panel Assembly — Removable/Replacement

RS-232 Connector

OCP
Connector

ZK-6022A-FH

6–6 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.5 Accessing the Internal FRUs
Figure 6–5 OCP Cable Disconnection

OCP Cable
Screws

ZK-6023A-FH

ESE50 Rev C — Removal and Replacement Procedures 6–7

ESE50 Rev C — Removal and Replacement Procedures
6.5 Accessing the Internal FRUs
6.5.2 ESE50 Chassis Removal
Perform the following steps to remove the ESE50 chassis from its external
enclosure:
1. Loosen, do not remove, the four captive screws located on the rear panel of
the external enclosure (Figure 6–1).
2. Observe and note the orientation of the ESE50 within its external enclosure
by locating the handle below the fan.
a. If the RS-232 connector is below the fan, then rotate the entire enclosure
180 degrees before proceeding.
b. If the RS-232 connector is above the fan, then proceed.
3. Slide the ESE50 chassis from the external enclosure by gripping the handle
and gently pulling it forward (Figure 6–6).
4. Place the external enclosure aside.
Figure 6–6 The ESE50 — Removable/Replacement
ESE50 External
Enclosure

Captive Screws

Handle

Captive Screws

Front

Rear
ZK-6024A-FH

6–8 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.5 Accessing the Internal FRUs
6.5.3 Side Panel Removal
Perform the following steps to remove the right and left side panels from ESE50
chassis:
1. Remove all the Phillips head screws located on both covers (Figure 6–7): front
(4 screws) and rear (4 screws).
2. Lift the right side cover up and off; place it aside.
3. Lift the left side cover up and off; place it aside.
Figure 6–7 Side Panel Removal
Cover Screws

Cover Screws

Front

Cover Screws

Rear
ZK-6025A-FH

(continued on next page)

ESE50 Rev C — Removal and Replacement Procedures 6–9

ESE50 Rev C — Removal and Replacement Procedures
6.5 Accessing the Internal FRUs
Figure 6–7 (Cont.) Side Panel Removal

ZK-6027A-FH

6–10 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.5 Accessing the Internal FRUs
6.5.4 Top Shock Mount Assembly Removal
Perform the following steps to remove the top shock mount assembly from the
ESE50 chassis:
1. Disconnect the RS-232 cable at the power monitor module (Figure 6–8).
2. Loosen the four captive screws on the shock mount assembly (Figure 6–9):
a. Turn two captive screws accessible from the side near the RS-232
connector.
b. Turn two captive screws accessible from the top rear of the shock mount
assembly.
3. Remove the shock mount assembly and place it aside.
Figure 6–8 The RS-232 Cable Disconnection

RS-232 Cable

ZK-6026A-FH

ESE50 Rev C — Removal and Replacement Procedures 6–11

ESE50 Rev C — Removal and Replacement Procedures
6.5 Accessing the Internal FRUs
Figure 6–9 Top Shock Mount Assembly — Captive Screws
Captive Screw

Captive Screw

Captive Screw
ZK-6028A-FH

6–12 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.6 ESE50 Modules Removal

6.6 ESE50 Modules Removal
This section describes the procedures to remove and replace ESE50 modules
(Figure 6–10) from the ESE50 backplane.
Note
Do not disconnect the ESE50 until all the steps in Section 6.2.2 and
Section 6.3.1 have been performed. Also, do not proceed any further
until all the removable procedures described in Section 6.5 have been
performed.

Caution
Static electricity can damage integrated circuits. Therefore, alway use a
grounded antistatic wrist strap (PN 29-11762-00) and a grounded work
surface when working with the internal parts of a computer system.

ESE50 Rev C — Removal and Replacement Procedures 6–13

ESE50 Rev C — Removal and Replacement Procedures
6.6 ESE50 Modules Removal
Figure 6–10 ESE50 Modules
Right Side

F
a
n

Array Module
Array Module
Array Module
Array Module
Array Module
Array Module
Array Module
Array Module

Controller Module
Array Module
08 00
Array Module
09 01
Array Module
10 02
Array Module
11 03
Array Module
12 04
Array Module
13 05
Array Module
14 06
Array Module
15 07
Battery Packs

RZ27 Disk Drive

Left Side
Power Monitor Module
Power Supply Module
Power Supply Module
F
a
n
AC Input Box

Note: 120 MB variant utilizes memory array slots 1 and 9.
600 MB variant utilizes memory array slots 1 through 10.
1 GB variant utilizes memory array slots 0 through 15.
600 MB and 1 GB variant utilizes two power supply modules.
ZK-6077A-FH

6–14 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.6 ESE50 Modules Removal
6.6.1 Controller and Array Modules
To remove and replace the controller or memory array modules from the ESE50
backplane, perform the following steps.
Note
Do not disconnect the ESE50 until all the steps in Section 6.2.2 and
Section 6.3.1 have been performed. Also, do not proceed any further
until all the removable procedures described in Section 6.5 have been
performed.

1. To remove a module from the ESE50 backplane:
a. Insert a narrow blade screwdriver, scribe, or needle-nose pliers into the
removal hole on either side of the module (Figure 6–11).
b. Pull the corner of the module gently forward until the module is free from
the backplane.
c.

Grasp the center of the module with your fingers and pull the module
completely free from the backplane (Figure 6–11).

2. To replace a module into the ESE50 backplane:
a. Slide the module into its appropriate slot.
b. Use your thumbs to push the module into the backplane.
c.

Ensure that the module is properly seated.

3. Proceed to Section 6.11.

ESE50 Rev C — Removal and Replacement Procedures 6–15

ESE50 Rev C — Removal and Replacement Procedures
6.6 ESE50 Modules Removal
Figure 6–11 Controller Module — Removable/Replacement

Controller
Module

Array
Module

ZK-6029A-FH

6–16 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.6 ESE50 Modules Removal
6.6.2 Power Monitor and Power Supply Modules
To remove and replace the power monitor or power supply modules from the
ESE50 backplane, perform the following steps.
Note
Do not disconnect the ESE50 until all the steps in Section 6.2.2 and
Section 6.3.1 have been performed. Also, do not proceed any further
until all the removable procedures described in Section 6.5 have been
performed.

1. To remove a module from the ESE50 backplane:
a. When removing a power supply module, you must first disconnect its
power connector (Figure 6–13), which connects the module to the ac input
box.
b. Insert a narrow blade screwdriver, scribe, or needle-nose pliers into the
removal hole on either side of the module.
c.

Pull the corner of the module gently forward until the module is free from
the backplane.
Caution

When removing or replacing either module, ensure that the underside of
the power monitor module does not come in contact with the heat sinks
that reside on the power supply module.

d. Grasp the center of the module with your fingers and pull the module
completely free from the backplane (Figure 6–12 or Figure 6–13).
2. To replace a module into the ESE50 backplane:
a. Slide the module into its appropriate slot.
b. Use your thumbs to push the module into the backplane.
c.

Ensure that the module is properly seated.

d. If the power supply module was removed, reconnect appropriate power
connectors (Figure 6–13).
3. Proceed to Section 6.11.

ESE50 Rev C — Removal and Replacement Procedures 6–17

ESE50 Rev C — Removal and Replacement Procedures
6.6 ESE50 Modules Removal
Figure 6–12 Power Monitor Module — Removable/Replacement

Power
Monitor
Module

ZK-6030A-FH

Figure 6–13 Power Supply Module — Removable/Replacement

Power
Supply
Module

Power Connector
ZK-6031A-FH

6–18 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.7 RZ27 Disk Drive Removal

6.7 RZ27 Disk Drive Removal
To remove and replace the disk drive and the slide module that it resides on from
the ESE50 chassis, perform the following steps.
Note
Do not disconnect the ESE50 until all the steps in Section 6.2.2 and
Section 6.3.1 have been performed. Also, do not proceed any further
until all the removable procedures described in Section 6.5 have been
performed.

1. Remove the disk drive from the ESE50 chassis by using your fingers to pull
the module and drive from the backplane (Figure 6–14).
2. Remove the disk drive from its module (Figure 6–15):
a. Remove the four Phillips head screws securing the drive to the module.
b. Disconnect the signal cable from the rear of the drive.
c.

Disconnect the dc power cable from the rear of the drive.

d. Remove the drive from the module and place it aside. You will need to
compare its option connector jumpers (Figure 6–16) with the new drive.
3. Replace the drive in the ESE50 backplane:
a. Set the jumpers on the option connector exactly as the old drive, if the
drive is being replaced.
b. Reconnect the dc power cable at the rear of the drive.
c.

Reconnect the signal cable at the rear of the drive.

d. Mount the new drive onto the module, or the old drive onto the new
module.
e.

Secure the drive to the module with four Phillips head screws.

Push the module and disk drive back into the ESE50 backplane. Be sure
that the module is properly seated.

4. Proceed to Section 6.11.

ESE50 Rev C — Removal and Replacement Procedures 6–19

ESE50 Rev C — Removal and Replacement Procedures
6.7 RZ27 Disk Drive Removal
Figure 6–14 Disk Drive with Slide Module — Removable/Replacement

RZ27 Disk Drive
ZK-6032A-FH

Figure 6–15 Disk Drive — Removable/Replacement
Phillips Screw
Phillips Screw
Power
Connector

Signal
Connector

Phillips Screw
Phillips Screw

6–20 ESE50 Rev C — Removal and Replacement Procedures

ZK-6033A-FH

ESE50 Rev C — Removal and Replacement Procedures
6.7 RZ27 Disk Drive Removal
Figure 6–16 Disk Drive — Jumper Setting
REAR VIEW OF AN RZ27 DISK DRIVE

49
50

1
2
SCSI Interface Connector

Power

FRONT VIEW OF AN RZ27 DISK DRIVE

Option Connector
2
20
1

Note jumper settings
2

19
SCSI ID = 1
Spin Up on Power Up

ESE50 Rev C — Removal and Replacement Procedures 6–21

ESE50 Rev C — Removal and Replacement Procedures
6.8 Battery Backup Pack Removal

6.8 Battery Backup Pack Removal
To remove the battery backup packs from the ESE50 chassis, perform the
following steps.
Note
Do not disconnect the ESE50 until all the steps in Section 6.2.2 and
Section 6.3.1 have been performed. Also, do not proceed any further
until all the removable procedures described in Section 6.5 have been
performed.

1. Remove the power monitor and power supply modules as described in
Section 6.6.
2. Disconnect the battery pack from J90 on the ESE50 backplane (Figure 6–17).
3. Remove the two Phillips head screws located at either end of the mounting
bracket (Figure 6–18).
4. Remove the old battery pack.
5. Install the new battery pack.
6. Secure the battery pack mounting bracket with two Phillips head screws
(Figure 6–18).
7. Reconnect the battery pack to J90 on the ESE50 backplane (Figure 6–17).
8. Replace the power monitor and power supply modules as described in
Section 6.6.
9. Proceed to Section 6.11.

6–22 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.8 Battery Backup Pack Removal
Figure 6–17 Battery Pack — Cable

Battery Cable
ZK-6034A-FH

Figure 6–18 Battery Pack — Removable/Replacement

Battery Pack Bracket

Phillips Screw

Phillips Screw
ZK-6035A-FH

ESE50 Rev C — Removal and Replacement Procedures 6–23

ESE50 Rev C — Removal and Replacement Procedures
6.9 AC Input Box

6.9 AC Input Box
To remove the ac input box from the ESE50 chassis, perform the following steps.
Note
Do not disconnect the ESE50 until all the steps in Section 6.2.2 and
Section 6.3.1 have been performed. Also, do not proceed any further
until all the removable procedures described in Section 6.5 have been
performed.

1. Remove the power monitor and power supply modules as described in
Section 6.6.
2. Remove the four Phillips head countersink screws that secure the ac input
box (Figure 6–19).
3. Disconnect the battery pack at J90 on the ESE50 backplane.
4. Pull the ac input box out, just enough to gain access to its cables
(Figure 6–20).
5. Disconnect the cables at P70 and J71.
6. Remove the two wires from the on/off switch (upper wire is blue and lower
wire is brown); use needle-nose pliers.
7. Remove the old ac input box and replace it with a new one.
8. Reconnect the two wires from the on/off switch (upper wire is blue and lower
wire is brown); use needle-nose pliers.
9. Reconnect the cables at P70 and J71.
10. Replace the four Phillips head countersink screws that secure the ac input
box (Figure 6–19).
11. Reconnect the battery pack at J90 on the ESE50 backplane.
12. Replace the power monitor and power supply modules as described in
Section 6.6.
13. Proceed to Section 6.11.

6–24 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.9 AC Input Box
Figure 6–19 AC Input Box Mounting Screws

Phillips
Screws
Phillips
Screws

ZK-6036A-FH

Figure 6–20 AC Input Box Mounting — Cables
AC Input Box

AC Power
Switch
and Power
Receptacle

ZK-6037A-FH

ESE50 Rev C — Removal and Replacement Procedures 6–25

ESE50 Rev C — Removal and Replacement Procedures
6.10 Fan Assembly — Removable/Replacement

6.10 Fan Assembly — Removable/Replacement
To remove the fan assembly from the ESE50 chassis, perform the following steps.
Note
Do not disconnect the ESE50 until all the steps in Section 6.2.2 and
Section 6.3.1 have been performed.
1. Remove the ESE50 chassis from its external enclosure (Section 6.5.2).
2. Remove the four Phillips head screws (Figure 6–21) and carefully pull the fan
assembly toward you.
3. Disconnect the fan cable at J35 on the ESE50 backplane (Figure 6–21).
4. Disconnect the OCP cable on the ESE50 backplane (Figure 6–21).
5. Remove the fan assembly.
6. Replace with a new fan assembly.
7. Reconnect the fan cable at J35 on the ESE50 backplane (Figure 6–21).
8. Reconnect the OCP cable on the ESE50 backplane (Figure 6–21).
9. Secure the fan assembly with captive screws, at this time only (Figure 6–21).
10. Proceed to Section 6.11.
Figure 6–21 Fan Assembly
Fan Cable
Phillip Screws

OPC Cable
ZK-6038A-FH

6–26 ESE50 Rev C — Removal and Replacement Procedures

ESE50 Rev C — Removal and Replacement Procedures
6.11 The ESE50 External Enclosure

6.11 The ESE50 External Enclosure
To place the ESE50 chassis into its external enclosure, perform the following
steps:
1. Replace the left and right side cover (Figure 6–7), and secure with Phillips
head screws: front (4 screws), rear (4 screws), and top (6 screws).
2. Replace top shock mount assembly (refer to Figure 6–9):
a. Place shock mount assembly on ESE50 chassis.
b. Tighten the top four captive screws on the shock mount assembly.
c.

Tighten the top two captive screws on the fan assembly.

d. Reconnect the RS-232 cable to the power monitor module.
3. Position the ESE50 chassis so that the RS-232 connector is above the fan
assembly.
4. Slide the ESE50 chassis into the external enclosure; use the handle and push
gently.
5. Tighten the four captive screws located on the rear panel of the ESE50
external enclosure.
6. Lay the front bezel down in front of the ESE50 external enclosure, with the
fan assembly facing you (Figure 6–4).
7. Reconnect the OCP cable and tighten the two screws on either side of the
OCP cable to secure it (Figure 6–5).
Caution
Ensure that the front panel cable does not become pinched between the
fan assembly and the ESE50 chassis.

8. Tighten the four Allen head captive screws; use a 5/32-inch Allen wrench,
securing the ESE50 chassis to the front of the ESE50 external enclosure. Do
not fully tighten each screw; back each screw off, then another until all are
loosened (Figure 6–3).
9. Replace the operator control panel (Figure 6–2).

ESE50 Rev C — Removal and Replacement Procedures 6–27

A
ESE50 Error Codes
This appendix lists the error codes for the ESE50. For each error code there is
listed the error code title, the error code, the error type and a brief description.
This appendix is intended for Field Service, Engineering, Software Development,
Depot Repair Centers, Test Engineering and Manufacturing.

A.1 Generic Status
The generic status consists of three bytes returned as part of the response to
an SDI Get Status/Topology command or any unsuccessful response to a level 2
command. The generic status bits consist of three bytes: REQUEST byte, MODE
byte, and ERROR byte as shown in the following format.

byte 4

byte 5
byte 6

< "REQUEST BYTE"

< "MODE BYTE"

< "ERROR BYTE"
ZK-6078A-FH

A.1.1 Request Byte
•

The OA bit is a 0 when the drive is drive available or drive on-line to the
controller.

•

The RR bit is a 1 when the drive has requested a readjustment.

•

The DR bit is a 1 when the drive has requested the controller to downline
load diagnostics to the drive.

•

The SR bit is a 1 when the drive spindle is ready.

•

The EL bit is a 1 when there is loggable information in the extended status
area.

•

The PB bit is a 0 when the drive is connected to the controller through port
A, and a 1 if the drive is connected to the controller through port B.

•

The PS bit is a 1 when the port switch is enabled (logically in).

•

The RU bit is a 1 when the drive run/stop switch is logically in.

ESE50 Error Codes A–1

ESE50 Error Codes
A.1 Generic Status
A.1.2 Mode Byte
•

The ED bits, when set to 10, disable internal error logging. The bits are
normally 00 to enable internal error logging.

•

The W1 bit indicates the logical position of the write protect switch for the
subunit; logically in if this bit is a 1.

•

The DD bit is a 1 when a controller error routine or diagnostic has disabled
the drive. When this bit is set, the fault light on the drive will be on.

•

The FO bit is a 1 when formatting is enabled in the drive.

•

The DB bit is a 1 when controller diagnostic cylinders access is enabled.

•

The S7 bit is a 0 when the drive is in 512-byte sector format. This bit should
always be 0 for ESE50.

A.1.3 Error Byte
The majority of drive detected errors will fit into one of the five following
mentioned classes and will be reported as one of these error types. A controller
detected drive error can be logged without any of these bits being set.
•

The DE error bit is used to report any internal drive detected error that
requires explicit controller recovery action other than simple command retransmission or context readjustment. The drive fault light will be on when
the DE bit is set.

•

The RE error bit is used to report transmission errors detected by the drive
(framing errors and checksum errors). The fault light will not be on when
this bit is set.

•

The PE error bit is used to report level 2 protocol errors detected by the drive
(illegal cylinder, invalid command, and so forth). The drive fault light will not
be on when this bit is set.

•

The DF error bit is used to indicate that the drive did not pass its
initialization/diagnostics the last time it was initialized or powered on.
The drive fault light will be on when this bit is set.

•

The WE error bit is used to report that the drive received a Select Track and
Write or a Format command while the drive was write protected. The drive
fault light will be on when this bit is set.

A.2 Extended Status Bytes
The extended status bytes are part of the response returned as a result of the
SDI Get Status/Topology command or any unsuccessful response to a level 2
command. These bytes are passed through the controller to the host for error
logging purposes. The extended status bytes consist of 7 bytes as shown in the
following format.

A–2 ESE50 Error Codes

ESE50 Error Codes
A.2 Extended Status Bytes

Previous Cmd Op−Code

byte 9
byte 10

byte 11

Logical Array

Logical Bank

byte 12

Phys. Array

Phys. Bank

byte 13

Not Used

byte 14

Error Code

byte 15

FRU Fault Code

NUO_1335_03_RGS

Byte 9 - Will indicate the last command received from the controller with
exception to the Get Status command, which will not be indicated in this byte.
Byte 10 - Indicates the state of the drive.
CO - The storage has a high CRD error rate
SV - The storage contains valid data
EH - The system is operating in variant mode
UO - The system is operating on internal batteries
DP - The data retention subsystem is present
DF - The data retention subsystem is faulted
DU - The data retention subsystem is unloading
DL - The data retention subsystem is loading
Byte 11 - Logical array number and logical bank number
Byte 12 - Physical array number and physical bank number
Byte 13 - Not used
Byte 14 - Error code
Byte 15 - FRU (field replaceable unit) code
Refer to Example A–1.

ESE50 Error Codes A–3

ESE50 Error Codes
A.2 Extended Status Bytes
Example A–1 Longword Example
SAMPLE ERRORLOG:
ERROR SEQUENCE 5945.
DATE/TIME 19-MAY-1992 09:45:21.10
SYSTEM UPTIME: 7 DAYS 00:37:35
SCS NODE: ESD08

LOGGED ON:

SID 018CD890
SYS_TYPE 00000000
VAX/VMS V5.5

ERL$LOGMESSAGE ENTRY KA785 HW REV# 3.A SERIAL# 2192. MFG PLANT 5.
I/O SUB-SYSTEM, UNIT _HSC007$DUA105:
MESSAGE TYPE

0001
DISK MSCP MESSAGE

MSLG$L_CMD_REF 00000000
MSLG$W_UNIT
0069
UNIT #105.
MSLG$W_SEQ_NUM

1186

MSLG$B_FORMAT

MSLG$B_FLAGS

MSLG$W_EVENT

00EB

SEQUENCE #4486.
SDI LOG
OPERATION CONTINUING
DRIVE ERROR
DRIVE DETECTED ERROR
MSLG$Q_CNT_ID

0000F807
01200000
UNIQUE IDENTIFIER, 00000000F807(X)
MASS STORAGE CONTROLLER
HSC70

MSLG$B_CNT_SVR

MSLG$B_CNT_HVR

CONTROLLER SOFTWARE VERSION #60.
CONTROLLER HARDWARE REVISION #0.
MSLG$W_MULT_UNT
0081
MSLG$Q_UNIT_ID 0000001B
02300000
UNIQUE IDENTIFIER, 00000000001B(X)
DISK CLASS DEVICE (166)
MODEL = 48.
MSLG$B_UNIT_SVR

MSLG$B_UNIT_HVR

UNIT SOFTWARE VERSION #23.
UNIT HARDWARE REVISION #7.
MSLG$L_VOL_SER 00000000
VOLUME SERIAL #0.
MSLG$L_HDR_CODE 00000000
LOGICAL BLOCK #0.
GOOD LOGICAL SECTOR
MSLG$Z_SDI
REQUEST

1F
RUN/STOP SWITCH IN
PORT SWITCH IN
LOG INFORMATION IN EXTENDED AREA
SPINDLE READY
PORT B RECEIVERS ENABLED

MODE

ERROR

CONTROLLER

512-BYTE SECTOR FORMAT
DRIVE ERROR
NORMAL DRIVE OPERATION
(continued on next page)

A–4 ESE50 Error Codes

ESE50 Error Codes
A.2 Extended Status Bytes
Example A–1 (Cont.) Longword Example
RETRY

00
0. RETRIES

DEVICE DEPENDENT INFORMATION
LONGWORD 1.

0000488E

LONGWORD 2.

08316100

LONGWORD 3.

00000001

LONGWORD 4.

00000000

/.H../
/.a1./
/..../
/..../
Longword Breakdown From Sample Errorlog:

LONGWORD 1.

___Byte 12: Physical Array and Bank Number
/ ____Byte 11: Logical Array and Bank Number
/ / _____Byte 10: State of drive
/ / / _______Byte 9: Previous CMD Op-Code
/ / / /
0000488E

LONGWORD 2.

____Byte 15: FRU Code
/ _____Byte 14: Error Code
/ / _______Byte 13: Not used
/ / /
08316100

ESE50 Error Codes A–5

ESE50 Error Codes
A.3 ESE50 Error Definitions

A.3 ESE50 Error Definitions
The following sections describe the drive detected errors bytes, reporting
mechanism, error reporting format, and each individual error detected.

A.3.1 Drive Detected Errors
•

DE BIT—Drive error DE represents the majority of error conditions which
can exist in the ESE50. When this bit is set, the fault indicator will be on.

•

WE BIT—The error write while write-protected is reported internal to the
drive as a drive fault with the fault indicator illuminated; however, it is
reported to the controller as a write lock error (WE).

•

RE & PE BIT—Transmission error and protocol error are detected by the
drive but are not necessarily drive problems and therefore are not reported to
the controller as drive faults.

•

DF BIT—Any error that occurs while the drive is in diagnostic mode
(while on line) or initialization mode is reported to the controller as
initialization/diagnostic failure (DF).

A.3.2 Reporting Mechanisms
The following paragraphs describe the drive actions as a result of a drive fault.
•

DRIVE OFF-LINE: The ESE50 is in the drive off-line state as a result of
the following conditions: power first applied, the A and B port switches are
both in the deasserted mode, or a hard failure which prevents communication
with the controller. When power is applied, the ESE50 starts its internal
integrity diagnostics. If a drive fault should occur while the drive is running
its internal integrity diagnostic, the drive will light the front panel fault light,
store the appropriate error code in the drive internal errorlog, and update the
generic status bits and the extended status bytes.

•

DRIVE AVAILABLE: The ESE50 is in this state when either the A, B,
or both port switches are in the asserted state and the controller has not
placed the drive on line. If a drive fault occurs while the drive is in the
drive available state, the drive will light the front panel fault light, store
the appropriate error code in the drive internal errorlog, update the generic
status bits in the extended status bytes, and wait for controller action.

•

DRIVE ON-LINE: The ESE50 enters the drive on-line state only after it
has successfully completed its internal integrity diagnostics and has received
a valid SDI on-line command (if the error byte is not zero, this will be an
invalid command).
If a drive fault (DE bit) should occur while the drive is in the drive online
state, the drive will light the front panel fault light, store the appropriate
error code in the drive internal errorlog, update the generic status bits
and the extended status bytes, assert ATTENTION in the RDS, deassert
read/write ready in the RDS, and wait for the appropriate action from the
controller (a valid get status/drive clear or topology/drive clear exchange).
If a read data transfer is taking place, the operation will most likely complete;
however, the drive will refuse any subsequent data transfer commands until
an SDI get status/drive clear sequence has been successfully completed.

A–6 ESE50 Error Codes

ESE50 Error Codes
A.3 ESE50 Error Definitions
If a write data transfer is taking place, the transfer will be aborted by the
drive by deasserting read/write ready, which in turn will disable write gate
from remaining or being asserted. Any status information associated with the
drive fault will be saved until the error condition has been properly cleared.

Code

Type

Title and Description

RDS During Transfer Error
This error indicates that an uncorrectable Hamming code error was detected
during a Level 1 transfer from the storage array.

Multiple RDS Transfer Error
This error indicates that more than one uncorrectable Hamming code error
was detected during a Level 1 transfer from the storage array in a single
transfer.

Non Existent Memory Error
This error indicates that a request has been made to address a nonexistent
memory address in the RAM storage.

Out of Range Enh Mode Error
This error indicates that the LBN sent in the Level 1 transfer command
was outside the valid LBN space of the drive. This error is valid only in
variant mode.

Memory Controller Abort
This error indicates that the memory array has detected an invalid
condition and aborted the data transfer.

SDI Frame Sequence Error
This error indicates that the SDI commands decoded at Level 1 were
detected in the wrong order of sequence.

SDI Checksum Error
This error indicates that the calculated checksum did not compare with the
checksum field sent to the drive from the controller (SDI commands decoded
at SDI Level 2).

SDI Framing Error
This error is generated when the drive has detected the sync pattern on the
SDI WRITE/CMD DATA line, but does not detect any SDI Level 1 Control
Message Transmission or Single Frame command.

SDI Level 1/2 Opcode Parity
This error indicates that wrong parity was detected on the opcode byte of a
Level 2 SDI command.

SDI Invalid Opcode
This error indicates that the Level 2 opcode that was decoded was not one
of the 16 valid opcodes listed in the SDI specification.

SDI Command Length Error LVL2
This error indicates that the number of bytes expected did not equal the
number of bytes received for an SDI Level 2 command.

SDI Invalid Cmd With Drive Error
This error indicates that the controller issued an Initiate Seek command,
an Error Recovery command, or a Recalibrate command while there was a
drive error.

SDI Invalid Group Select LVL2
This error indicates that the controller attempted to select a group that was
nonexistent.

ESE50 Error Codes A–7

ESE50 Error Codes
A.3 ESE50 Error Definitions
Code

Type

Title and Description

SDI Write Enable/Write Protect
This error indicates that the drive write protect switch is logically in
and the controller issued a Change Mode command that attempted to
write-enable the drive.

SDI Xfer Command with Drive Error
This indicates that a Level 1 transfer command was sent while the drive
was in a faulted state.

SDI Invalid Format Request
This error indicates that the controller directed the drive to place itself into
the mode to transfer sector data in 576-byte format.

SDI Invalid Variant Request
This error indicates that the controller directed the drive to place itself a
variant mode not supported by the drive.

SDI Invalid Cmd In Variant Mode
This error indicates that the controller directed the drive to execute a
Recalibrate or Seek command while in variant mode.

SDI Invalid Cylinder Address
This error indicates that the drive detected a nonexistent cylinder address
that was decoded from a controller Initiate Seek command.

Drive Discon Due To Cntlr
This code indicates that the drive has dropped a controller due to nonresponse.

CRD Overflow Error
This code indicates that a bank of storage has generated more than 256
single bit corrections.

Sector Overrun Error
When a sector or index pulse occurs with either write gate or read gate
asserted, an overrun error will occur. This indicates that a write or read
operation was attempted through a sector/index boundary.

SDI Invalid Error Recovery Level
This error indicates that the controller issued an SDI Error Recovery
command with an illegal recovery level.

SDI Invalid Subunit Specified
This error indicates that the controller requested information on a subunit
of the ESE50.

SDI Invalid Diagnose Mem Reg
This error indicates that the controller/operator attempted to execute an
internal drive test that was nonexistent or an internal drive test that was
unable to execute while on-line to the controller.

SDI Spindle Not Ready - Seek/Recal
This error indicates that the controller issued an SDI Initiate Seek or
Recalibrate command when the drive was not spinning (the run/stop switch
is in the out position).

Spinup Inhibited By Controller Flags
This error indicates that the drive is prohibited to spin up while in the
available or online state by means of manual intervention.

SDI Run Cmd/Run In Stop Position
This error indicates that the controller issued the SDI Run command to
the drive requesting the media to spin up while the run/stop switch on the
operator control panel is in the logical stop position.

SDI Invalid Read Mem Region
This error indicates that the controller issued an SDI Level 2 Read Memory
Region command to a memory area that the drive designates as invalid.

A–8 ESE50 Error Codes

ESE50 Error Codes
A.3 ESE50 Error Definitions
Code

Type

Title and Description

SDI Response Timed Out
This error indicates that the drive was attempting to send a response to the
controller and the controller was not accepting the message response data
from the drive.

Not Online/Seek Command Issued
This error indicates that the controller issued an SDI Level 2 Initiate Seek
command and the drive was not on line to the controller.

TCR and Not R/W READY Fault
This error indicates that a data transfer command, Transfer Command
Received (TCR), has been initiated and the drive is not ready to read/write
or the drive detected a loss of read/write ready during the data transfer.

Format Command and Not Enabled
This error indicates that the drive decoded a "Select Track and Format on
Index" or "Format on Sector or Index" command without the FO bit in the
drive being set.

R/W Safety Interrupt W/O Cause
This error indicates that an error interrupt occurred, but no cause was
found.

Invalid Dis. Cmd. TT Bit
This error indicates that an SDI Disconnect command was issued to the
drive and the TT modifier bit was in an incorrect state.

Invalid Wrt Mem Byte Cnt/Offset
This error indicates that an incorrect number of data bytes were detected
that were to be written in the drive’s memory, or that the offset into the
memory region is incorrect.

Invalid Cmd During Topology Command
This error indicates that the drive received an SDI Level 2 command that
was defined as being illegal. This is due to the circumstance that an SDI
Level 2 Topology command was already in process.

Drive Disabled by DD Bit Set
Thie error indicates that the controller issued an SDI Level 2 Change Mode
command with the DD bit asserted.

Write/Format While Protected
This error indicates that the drive is write-protected and detected the
assertion of write gate.

SDI Transfer Error
This error indicates that a control or data clock dropout during a data
transfer.

IMB Access Error
This error indicates that a fault was detected during IMB testing.

Data Retention, No Disk Response Error
This error indicates that the disk did not respond during initial testing.

FIFO Data Error
This indicates that a fault was detected during testing of the FIFO.

Single Bit Correction Failure
This error indicates that a fault was detected during testing of the ECC
chip.

Power Up Test Failure
This error indicates that a fault was detected during the power test.

Multiple Bad Memory Arrays
This error indicates that during the memory array tests, multiple arrays
were found bad.

ESE50 Error Codes A–9

ESE50 Error Codes
A.3 ESE50 Error Definitions
Code

Type

Title and Description

Configuration Fault
This error indicates that the configuration of the system is not valid.

60 6F

Bad Array Module 0 to 15
This error indicates that a fault was detected during testing of the array
module in Slot 0 to 15.

IORTEST Fault
This error indicates that a fault was detected during testing of the SDI
hardware initialization.

CLKTEST Fault
This error indicates that a fault was detected during testing of the
diagnostic clock.

SECTEST Fault
This error indicates that a fault was detected during testing of the sector
and index clocks.

IDLTEST Fault
This error indicates that a fault was detected during testing of the SDI
internal control and data loopback paths.

IDFTEST Fault
This error indicates that a fault was detected during testing of the SDI
internal control paths using invalid frames.

ICLTEST Fault
This error indicates that a fault was detected during testing of SDI
initialize.

IMBTEST Fault
This error indicates that a fault was detected during testing of the dual-port
RAM to memory transfers.

SMTEST Fault, IMB to SDI
This error indicates that a fault was detected during testing of the internal
SDI to IMB transfer.

SMTEST Fault, SDI to IMB
This error indicates that a fault was detected during testing of the internal
IMB to SDI transfer.

Internal SDI Loopback Test Hung
This error indicates that the SDI loopback test is hung.

IMB Header Verify, BAD
This error indicates that a bad header was detected during testing of the
memory.

IMB Header Verify, Abort
This error indicates that an abort or noack was detected during testing of
the headers.

IMB Format Error, Noack/Abort
This error indicates that an abort or noack was detected during the
formatting of the memory.

IMB Initialize Error, Abort/Noack
This error indicates that an abort or noack was detected during the writing
of the SDI header.

IMB ECC Check Error, Abort/Noack
This error indicates that an abort or noack was detected during the testing
of the ECC logic.

IMB ECC Check Error, Controller
This error indicates that a controller error was detected during the testing
of the ECC logic.

A–10 ESE50 Error Codes

ESE50 Error Codes
A.3 ESE50 Error Definitions
Code

Type

Title and Description

Battery Failure
This error indicates that the battery pack is faulty and unable to maintain
a charge.

Low Battery Charge
This error indicates that the charge state of the system may not support a
complete unload cycle in the event of a power loss.

OCP Failure
This error indicates that a fault was detected in the OCP operation.

Backup Disk Fault
This error indicates that a fault was detected in the SCSI disk operation.

Data Retention Backup No Data
This error indicates that the data retention system was requested to do a
load, but contained no valid information.

Data Retention Backup Invalid Data
This error indicates that the data retention system contains data, but it is
invalid. The data in the data retention system is not a copy of the most
up-to-date information.

Invalid Test Number
This error indicates that the test number selected was not valid.

Over Temperature, Warning @45 C
This error indicates that the temperature within the chassis is greater than
45 degrees Celsius.

Power Supply Module 1 Failure
This error indicates that the power supply module has a failure. This may
be a +12 V regulator or -5.2 V regulator fault. Also, in a redundant supply
system, it may be a +5 V regulator or the primary regulator fault.

Power Supply Module 2 Failure
This error indicates that the power supply module has a failure. This may
be a +12 V regulator or -5.2 V regulator fault. Also, in a redundant supply
system, it may be a +5 V regulator or the primary regulator fault.

Over Temperature Shutdown, @50 C
This error indicates that the temperature within the chassis is greater than
50 degrees Celsius. It also indicates that a save operation will be performed
and the system will be shut down upon completion.

Over Temperature Shutdown, @55 C
This error indicates that the temperature within the chassis is greater than
55 degrees Celsius. It also indicates that the system will be shut down
immediately.

Standby Power System On
This error indicates that the AC power has failed and the batteries are
supplying power to the drive.

ESE50 Error Codes A–11

B
ESE50-CA Upgrade Procedure
This appendix describes the procedure for upgrading the ESE50 from 120 MB to
640 MB storage capacity.
Refer to Chapter 5 for instructions on how to:
•

Remove the ESE50 from the cabinet

•

Remove the covers of the ESE50

Next, unpack the upgrade kit. It should contain the following items:
•

One power supply module

•

Eight storage array modules

•

One upgrade sticker

While referring to Figure B–1 and Section 5.5:
•

Begin the actual upgrade by first installing the power supply module directly
above the existing power supply module. Connect it in the same fashion as
the existing power supply module.

•

Install the new array modules in slots 02 through 07, 08 and 10 with the
eight array modules.

•

To set up and reformat the ESE50, power up the unit and verify that it is
reported as an ESE56 module type 48, and has the correct capacity using
DKUTIL or other commands.
Note
Array locations are identical for an ESE50 (Rev. C) upgrade.

ESE50-CA Upgrade Procedure B–1

ESE50-CA Upgrade Procedure

Figure B–1 120 to 600 MB Conversion

LEFT SIDE

POWER MONITOR MODULE

POWER MONITOR MODULE
POWER SUPPLY MODULE
POWER SUPPLY MODULE

POWER SUPPLY MODULE

AC INPUT BOX

BATTERY PACK

F
A
N

AC INPUT BOX

CONTROLLER MODULE

08 00
09 01

ARRAY MODULE

10 02

F
A
N

11 03
12 04
RZ35 DISK DRIVE

F
A
N

RIGHT SIDE

RIGHT SIDE
CONTROLLER MODULE
ARRAY MODULE

BATTERY PACK

13 05

ARRAY MODULE

08 00

ARRAY MODULE

09 01

ARRAY MODULE

10 02

ARRAY MODULE

11 03

ARRAY MODULE

12 04

ARRAY MODULE

13 05

ARRAY MODULE

14 06

ARRAY MODULE

15 07

ARRAY MODULE

RZ35 DISK DRIVE

14 06
15 07

120 MB

ARRAY MODULE

600 MB

Once the previous steps have been performed, replace the covers and replace the
ESE50 in the cabinet.

B–2 ESE50-CA Upgrade Procedure

Index
A
AC input box, 1–9
array module(s), 1–9
attention mechanism, 1–12

C
connect, 1–13
controller module, 1–9

D
description, ESE50 SSD, 1–1
disconnect, 1–13
display, 1–14
DSA/SDI compatibility, 1–1

E
errors
hard, 1–12

F
fault codes, 1–15
FAULT switch/indicator, 1–11
field service terminal port, 1–3

H
hard errors, 1–12

P
port A
switch/indicator, 1–11

port B
switch/indicator, 1–11
port switches and LEDs, 1–13
power monitor module, 1–9
power supply module, 1–9

R
READY indicator, 1–11
RUN/STOP switch/indicator, 1–11
RZ27 disk drive, 1–9
RZ35 disk drive, 1–9

S
spin-down, 1–12
spin-up, 1–12
switches and indicators
A port, 1–11
B port, 1–11
fault, 1–11
ready, 1–11
run/stop, 1–11
write protect, 1–11
system diagnostics, 2–2

T
troubleshooting tips, 2–1

W
write enable, 1–13
write error, 1–13
write protect, 1–13
WRITE PROTECT switch/indicator, 1–11

Index–1